TCP TRICALCIUM PHOSPHATE

In dry food mixes, spice blends, table salt, powdered beverages, and non-dairy creamers, micronized porous particles of TCP Tricalcium Phosphate coat larger host crystals and physically adsorb environmental humidity and liquid fats without dissolving or forming sticky liquid bridges, keeping hygroscopic powders free-flowing at tiny dosages of 0.5% to 2.0% w/w. In liquid UHT plant-based milks (soy, oat, almond), fruit juices, and infant nutrition, ultra-fine TCP Tricalcium Phosphate provides nearly 39% elemental calcium at a neutral slurry pH (6.8 to 8.5) and extremely low equilibrium water solubility (~0.002 g/100 mL at 20 °C), completely avoiding the thermal protein coagulation, soy curdling, and chalky alkaline off-taste caused by soluble calcium salts or calcium carbonate.

Beyond nutrition, pharmaceutical formulators rely on direct-compression granular TCP Tricalcium Phosphate for high-hardness, low-friability tablet compaction via brittle fracture, cosmetic chemists deploy TCP Tricalcium Phosphate as a sebum-absorbing mattifier and Pickering emulsion stabilizer, and polymer engineers use sub-micron TCP Tricalcium Phosphate as the primary inorganic dispersing agent in expandable polystyrene (EPS) and PMMA bead reactors. Partnering with Ataman Kimya for Food Grade (E341(iii) / FCC), Pharma Grade (USP / European Pharmacopoeia), Cosmetic Grade, Feed Grade, and Polymerization Grade TCP Tricalcium Phosphate ensures strict heavy-metal and fluoride compliance, tailored particle-size distribution, and uninterrupted supply chain reliability.

CAS Number: 7758-87-4 (Phosphoric acid, calcium salt (2:3); Stoichiometric Anhydrous Tricalcium bis(orthophosphate) Ca3(PO4)2, including beta-TCP and alpha-TCP); also registered commercially as CAS 1306-06-5 and CAS 12167-74-7 (Hydroxyapatite / Pentacalcium hydroxide tris(orthophosphate) Ca5(PO4)3(OH) / Ca10(PO4)6(OH)2, the standard precipitated Food/USP Tribasic Calcium Phosphate crystal form)
EC Number: 231-840-8 (EINECS for Ca3(PO4)2) and 215-145-7 / 235-330-6 (EINECS for Ca5(PO4)3(OH) / Calcium Hydroxyapatite; EU REACH Registered)
Molecular Formula: Ca3(PO4)2 or Ca3O8P2 (Ideal stoichiometric formula) and Ca5(PO4)3(OH) or Ca10(PO4)6(OH)2 or 3Ca3(PO4)2·Ca(OH)2 (Commercial precipitated apatitic Tribasic Calcium Phosphate formula per FCC / USP-NF / Ph. Eur. / E341(iii))
Molecular Weight: 310.18 g/mol for stoichiometric Ca3(PO4)2; 502.31 g/mol for Ca5(PO4)3(OH) (1,004.62 g/mol for Ca10(PO4)6(OH)2 unit cell)
INCI Name: TRICALCIUM PHOSPHATE (and HYDROXYAPATITE for biomimetic oral-care and cosmetic apatitic grades; functions: Abrasive, Anticaking Agent, Bulking Agent, Opacifying Agent, Oral Care Agent, Sebum-Absorbing Mattifier, Emulsion Stabilizer)
E Number: E341(iii) (Tricalcium phosphate / Tribasic calcium phosphate, authorized under EU Regulation (EC) No 1333/2008 and Commission Regulation (EU) No 231/2012; US FDA GRAS under 21 CFR 182.8217 as Nutrient Supplement and 21 CFR 182.1217 as Multiple-Purpose GRAS Food Substance; Codex INS No. 341(iii))
Melting Point: 1,670.0 °C (3,038.0 °F; stoichiometric beta-Ca3(PO4)2 transforms reversibly to monoclinic alpha-Ca3(PO4)2 at ~1,125 °C and to alpha'-Ca3(PO4)2 at ~1,430 °C before melting at 1,670 °C; apatitic Ca10(PO4)6(OH)2 undergoes gradual dehydroxylation above 1,100 to 1,350 °C and melts at ~1,650 to 1,670 °C)
Boiling Point: Not applicable (Non-volatile refractory inorganic mineral salt; thermally stable up to > 1,100 °C with Loss on Ignition <= 8.0% to 10.0% at 800 °C due to release of structural hydroxyl water from the hydroxyapatite lattice)
Viscosity: Not applicable to dry crystalline powder or granules (in 10% to 20% w/w aqueous suspensions at 20 °C, un-thickened TCP Tricalcium Phosphate forms a low-viscosity dispersion of ~2 to 15 mPa·s that settles unless stabilized with 0.15% to 0.30% xanthan gum, gellan gum, or carrageenan)
Density: True Crystal Density: 3.14 g/cm3 at 20 °C (3.07 g/cm3 for pure beta-TCP, 2.86 g/cm3 for alpha-TCP, 3.14 to 3.16 g/cm3 for apatitic TCP); Loose Apparent Bulk Density: 0.18 to 0.45 g/cm3 (180 to 450 g/L) for Fine Micronized Anticaking / Food Powder Grades (such as F-6000 / 325-mesh grades) and 0.55 to 0.85 g/cm3 (550 to 850 g/L) for Direct-Compression (DC) Granular Tablet Grades; Tapped Bulk Density: 0.30 to 0.95 g/cm3 depending on grade

Most Frequently Encountered Synonyms:
TCP Tricalcium Phosphate
TCP TRICALCIUM PHOSPHATE
Tricalcium phosphate
Tribasic calcium phosphate
Calcium phosphate, tribasic
Calcium orthophosphate
Tri-calcium orthophosphate
Tertiary calcium phosphate
Tricalcium bis(orthophosphate)
Phosphoric acid, calcium salt (2:3)
Calcium phosphate (3:2)
Precipitated calcium phosphate
Apatitic tricalcium phosphate
Calcium-deficient hydroxyapatite (CDHA)
Calcium hydroxyapatite
Hydroxylapatite
Pentacalcium hydroxide tris(orthophosphate)
Bone phosphate of lime (BPL)
Bone ash (synthetic equivalent)
beta-Tricalcium phosphate (beta-TCP, rhombohedral phase)
alpha-Tricalcium phosphate (alpha-TCP, monoclinic phase)
E341(iii)
E341 Tricalcium Phosphate
INS 341(iii)
FCC Tribasic Calcium Phosphate
USP Tribasic Calcium Phosphate
TCP Food Grade
TCP F-6000 (Micronized Anticaking Grade)
TCP DC Grade (Direct-Compression Granular Grade)
Trikalsiyum fosfat (Turkish)
Tribazik kalsiyum fosfat

WHAT IS TCP TRICALCIUM PHOSPHATE?

TCP Tricalcium Phosphate is a purified, synthetic inorganic calcium orthophosphate salt with a nominal calcium-to-phosphorus molar ratio between 1.50 (corresponding to stoichiometric anhydrous Ca3(PO4)2) and 1.67 (corresponding to stoichiometric calcium hydroxyapatite, Ca10(PO4)6(OH)2 or 3Ca3(PO4)2·Ca(OH)2). In aqueous precipitation chemistry, true anhydrous Ca3(PO4)2 cannot be precipitated directly from water at ambient or boiling temperatures; instead, reacting high-purity orthophosphoric acid (H3PO4) with food/pharma-grade calcium hydroxide (slaked lime, Ca(OH)2) in water yields a microcrystalline, high-surface-area precipitate of calcium-deficient hydroxyapatite (CDHA, Ca9(HPO4)(PO4)5(OH)) or hydroxyapatite (Ca5(PO4)3(OH)). Consequently, international pharmacopoeias (USP-NF, Ph. Eur., BP, JP) and food additive compendia (FCC, JECFA, EU Regulation 231/2012 for E341(iii)) explicitly define commercial Tribasic Calcium Phosphate / TCP Tricalcium Phosphate as a variable mixture of calcium phosphates having the approximate composition 10CaO·3P2O5·H2O (Ca5(PO4)3(OH)) or Ca3(PO4)2, containing between 34.0% and 40.0% w/w elemental calcium (typically 37.0% to 39.5% Ca) and ~19.5% to 20.5% w/w elemental phosphorus.

When this wet-precipitated apatitic TCP Tricalcium Phosphate is spray-dried and micronized at moderate temperatures (< 400 °C), it forms porous, rosette-like spherical micro-aggregates with a high specific surface area (25 to 80 m2/g) and high oil/water pore volume—making it an extraordinary physical anticaking agent, carrier for liquid flavors, and Pickering emulsion/suspension stabilizer. Conversely, when precipitated TCP Tricalcium Phosphate with a Ca/P molar ratio of 1.50 is calcined in high-temperature rotary kilns at 850 to 1,100 °C, it crystallizes into phase-pure rhombohedral beta-Tricalcium Phosphate (beta-Ca3(PO4)2, beta-TCP), and when fired above 1,125 to 1,250 °C and quenched, it forms monoclinic alpha-Tricalcium Phosphate (alpha-Ca3(PO4)2, alpha-TCP)—the two premier resorbable bioceramics used in orthopedic and dental bone-graft substitutes.
Across all grades, TCP Tricalcium Phosphate is a snow-white, odorless, tasteless, non-flammable, chemically inert powder that is practically insoluble in neutral or alkaline water (~0.002 g/100 mL at 20 °C), safeguarding liquid and dry formulations from unwanted calcium-ion cross-reactions during processing while dissolving rapidly in the hydrochloric acid of the human stomach (pH 1.5 to 3.0) to deliver 100% bioavailable dietary calcium and phosphorus.

NATURAL OCCURRENCE, HISTORICAL DEVELOPMENT AND POLYMORPHIC FORMS OF TCP TRICALCIUM PHOSPHATE

In nature, calcium orthophosphates of the TCP Tricalcium Phosphate and apatite family constitute the primary mineral reservoir of phosphorus on Earth as well as the structural skeleton of all vertebrate life:

 Biological Bone and Dental Enamel Mineral: Modified biological calcium hydroxyapatite (bone mineral, closely represented by commercial apatitic TCP Tricalcium Phosphate) makes up approximately 50% to 70% of the dry weight of human bones, 70% of dentin, and 96% to 97% of dental tooth enamel. Historically, calcining animal bones at high temperatures produced "bone ash" (primarily beta-TCP and hydroxyapatite), which has been used since the 18th century in English Bone China porcelain and early agricultural fertilizers.

 Geological Phosphate Rock & Whitlockite: Natural geological deposits of phosphorite and apatite rock (containing 30% to 40% P2O5 by weight) occur extensively in Morocco, Israel, Egypt, the Kola Peninsula, the United States, China, and the Philippines, while meteoritic and terrestrial whitlockite represents the natural mineral analogue of beta-TCP. However, natural phosphate rock contains high levels of fluoride (3% to 4% F), silica sand, carbonate, and heavy metals (cadmium, arsenic, lead, uranium), so food-, pharma-, cosmetic-, and polymerization-grade TCP Tricalcium Phosphate must be synthesized chemically from purified wet-process or thermal phosphoric acid and purified lime.

 The Four Commercial Polymorphic & Structural Forms of TCP Tricalcium Phosphate:
   - Apatitic Precipitated TCP Tricalcium Phosphate (CDHA / Hydroxyapatite, Ca5(PO4)3(OH) or Ca9(HPO4)(PO4)5(OH)): The standard high-porosity Food (E341(iii) / FCC), Pharmaceutical (USP / Ph. Eur.), Cosmetic, and Polystyrene Polymerization grade. Features high specific surface area (30 to 70 m2/g), loss on ignition 3.5% to 8.0% at 800 °C, and exceptional moisture/oil absorption.
   - Rhombohedral beta-Tricalcium Phosphate (beta-TCP, beta-Ca3(PO4)2): Formed by calcining Ca/P = 1.50 precursors at 850 to 1,100 °C. Thermodynamically stable below 1,125 °C, true density 3.07 g/cm3, loss on ignition < 1.0%; widely used in resorbable orthopedic/dental bone grafts, dental remineralizing pastes (such as functionalized fTCP), and high-temperature ceramics.
   - Monoclinic alpha-Tricalcium Phosphate (alpha-TCP, alpha-Ca3(PO4)2): Formed above 1,125 °C (density 2.86 g/cm3); exhibits higher internal crystal energy and faster aqueous hydrolysis than beta-TCP, allowing alpha-TCP powder to hydrate and set in situ at 37 °C body temperature into self-setting Calcium Phosphate Bone Cements (CPC).
   - Super-High-Temperature alpha'-Tricalcium Phosphate (alpha'-TCP): Hexagonal polymorph stable only above 1,430 °C up to the melting point of 1,670 °C.

CHEMICAL STRUCTURE, POROUS MICRO-ARCHITECTURE AND FUNCTIONAL MECHANISMS

The industrial versatility of TCP Tricalcium Phosphate arises from three interconnected physicochemical features:

 Tetrahedral Orthophosphate Network Coordinated by Nine- and Seven-Fold Calcium Cations:
In both apatitic TCP Tricalcium Phosphate and beta-TCP, rigid tetrahedral orthophosphate anions (PO4^3-) are cross-linked by divalent calcium cations (Ca2+) through strong ionic-covalent Ca-O bonds. In the hexagonal hydroxyapatite structure (space group P63/m, unit cell a = 9.42 Angstroms, c = 6.88 Angstroms), columns of Ca(I) ions and triangular channels of Ca(II) ions surround central hydroxyl (OH-) channels. This tightly bound crystal lattice produces an extremely low solubility product in neutral water (Ksp ~ 2.07 x 10^-33 for Ca3(PO4)2 and ~10^-58 for Ca5(PO4)3(OH)), meaning equilibrium dissolved Ca2+ in neutral water at 20 °C is less than 8 to 10 mg/L!

 Mesoporous Micro-Aggregate Morphology ("Micro-Sponge" Effect):
When TCP Tricalcium Phosphate is precipitated under controlled alkaline pH (8.0 to 10.5) and spray-dried, nano-sized primary crystallites (20 to 80 nm needles or platelets) self-assemble into porous spherical secondary particles (typically 3 to 15 microns for anticaking grades or 150 to 300 microns for direct-compression tablet grades). The interstitial mesopores within each TCP Tricalcium Phosphate particle create an internal capillary network capable of absorbing 50% to 95% of its own weight in water vapor, liquid vegetable oils, or volatile spice oleoresins while keeping the outer particle surface completely dry and non-cohesive.

 Amphiphilic Solid Particle Wetting (Pickering Stabilization):
Because the crystal faces of TCP Tricalcium Phosphate expose both positively charged calcium sites (Ca-rich a/b-planes) and negatively charged phosphate groups (PO4-rich c-planes), sub-micron TCP Tricalcium Phosphate particles exhibit a three-phase contact angle close to 90 degrees at oil-water and monomer-water interfaces when modified with trace anionic surfactants. This enables TCP Tricalcium Phosphate to form a rigid, steric mechanical armor ("Pickering barrier") around styrene monomer droplets in suspension polymerization reactors and oil droplets in cosmetic emulsions.

INDUSTRIAL PRODUCTION AND MANUFACTURING PROCESSES

Commercial Food, Pharmaceutical, Cosmetic, and Technical grades of TCP Tricalcium Phosphate supplied by Ataman Kimya are manufactured via three precision processes:
- Process 1 (Purified Wet Neutralization Precipitation — Standard for E341(iii) Food, USP Pharma, Cosmetic, and Polymerization Grades):
  Food/Pharma-grade purified wet-process or thermal orthophosphoric acid (H3PO4, 75%–85%, pre-treated to remove arsenic < 1 ppm, lead < 0.5 ppm, and fluoride < 10 ppm) is metered under intense high-shear agitation into an aqueous slurry of purified hydrated lime (calcium hydroxide, Ca(OH)2) at 40 to 85 °C:
  5 Ca(OH)2 + 3 H3PO4  --->  Ca5(PO4)3(OH) (Precipitated Apatitic TCP) + 9 H2O
  (or 3 Ca(OH)2 + 2 H3PO4  --->  Ca3(PO4)2 + 6 H2O)
  By precisely controlling the final reaction pH (typically pH 7.5 to 9.5), reaction temperature, addition rate, and maturation time, the crystal habit, primary nano-crystallite size, and pore volume of TCP Tricalcium Phosphate are tailored:
  - For Polystyrene Suspension-Polymerization Grade TCP: Precipitation is conducted under ultra-high shear to yield uniform sub-micron primary particles (d50 = 0.3 to 1.5 microns), supplied either as a wet filter cake/slurry or jet-milled powder.
  - For Micronized Anticaking & Beverage Fortification Grade TCP (such as F-6000 / 325–1250 mesh): The washed slurry is flash-dried or spray-dried and air-classified to d50 = 2.5 to 10.0 microns.
  - For Direct-Compression (DC) Pharmaceutical Tablet Grade TCP: The concentrated aqueous slurry is atomized in a tall co-current spray-drying tower (or roller-compacted) to produce dense, spherical, free-flowing granules (d50 = 120 to 250 microns, bulk density 0.60 to 0.80 g/cm3).

- Process 2 (Aqueous Double Decomposition for Ultra-Pure Biomedical & Analytical Grades):
  For ultra-pure biomedical scaffolds and chromatography hydroxyapatite, aqueous calcium nitrate (Ca(NO3)2) or calcium chloride (CaCl2) is reacted with diammonium hydrogen phosphate ((NH4)2HPO4) or disodium phosphate (Na2HPO4) in the presence of aqueous ammonia at pH 9.5 to 11.0, followed by exhaustive deionized water washing to remove ammonium nitrate/chloride salts.

- Process 3 (High-Temperature Calcination & Sintering for Crystalline beta-TCP, alpha-TCP, and Defluorinated Feed TCP):
  To convert calcium-deficient apatitic precipitates (Ca/P = 1.50) into anhydrous crystalline beta-Tricalcium Phosphate (beta-Ca3(PO4)2), the dried powder is calcined at 850 to 1,050 °C for 2 to 4 hours. For agricultural Defluorinated Tricalcium Phosphate (Feed Grade TCP), natural phosphate rock is reacted with phosphoric acid and soda ash/lime in a rotary kiln at 1,350 to 1,500 °C in the presence of steam to drive off hydrogen fluoride gas, yielding a highly digestible feed mineral containing >= 18.0% P, >= 32.0% Ca, and <= 0.18% F.

PHYSICAL AND CHEMICAL PROPERTIES OF TCP TRICALCIUM PHOSPHATE

Quantitative physical constants and compendial specification limits for Ataman Kimya's Food / Pharmaceutical / Cosmetic Grade TCP Tricalcium Phosphate (E341(iii) / FCC / USP-NF / Ph. Eur.) include:
- Chemical Names: Tricalcium phosphate; Tribasic calcium phosphate; Calcium orthophosphate; Pentacalcium hydroxide tris(orthophosphate)
- CAS Registry Numbers: 7758-87-4 (Ca3(PO4)2) / 1306-06-5 & 12167-74-7 (Ca5(PO4)3(OH))
- EC / EINECS Numbers: 231-840-8 / 215-145-7
- E Number / INS Code: E341(iii) / INS 341(iii)
- Appearance & Odor: Brilliant white, amorphous or microcrystalline free-flowing powder or spherical granules; completely odorless and tasteless
- Assay (Elemental Calcium Content, Ca on ignited/dried basis): 34.0% to 40.0% w/w (FCC / USP-NF / E341(iii) specification; typical commercial batches assay 37.0% to 39.2% w/w Ca)
- Phosphorus Content (Elemental P / P2O5 Equivalent): 19.0% to 20.5% w/w P (equivalent to ~43.5% to 47.0% w/w P2O5; theoretical Ca3(PO4)2 is 38.76% Ca and 19.97% P)
- Ca/P Molar Ratio: 1.50 to 1.67 (weight ratio Ca:P ~ 1.94:1 to 2.15:1, matching human bone and dental mineral)
- Solubility in Water at 20 °C: Practically insoluble (~0.002 g/100 mL or 20 mg/L; Water-Soluble Substances per USP/FCC <= 0.5% w/w)
- Solubility in Acids & Solvents: Freely soluble in dilute hydrochloric acid (3N HCl) and dilute nitric acid (HNO3); practically insoluble in ethanol (96%) and glacial acetic acid; Acid-Insoluble Substances <= 0.2% w/w
- pH of 10% w/w Aqueous Slurry (20 °C): 6.8 to 8.5 (typically 7.2 to 8.0)
- Loss on Ignition (at 800 °C for 30 minutes to 2 hours, FCC / E341(iii) / USP): <= 8.0% w/w for standard precipitated apatitic TCP (<= 10.0% per E341(iii); typically 4.0% to 6.5% w/w; <= 1.0% for calcined anhydrous beta-TCP)
- Loss on Drying (105 °C, 3 hours): <= 2.0% to 2.5% w/w
- True Specific Gravity / Density: 3.14 g/cm3
- Loose Bulk Density: 0.18 to 0.40 g/cm3 (Fine Anticaking Powder) / 0.55 to 0.85 g/cm3 (DC Granular Grade)
- Particle Size Distribution:
  - Standard Food / Anticaking Powder (325 Mesh): >= 98.0% passing 45 microns (325 US mesh), d50 ~ 6 to 15 microns
  - Ultra-Fine Beverage / Polymerization Micronized Grade (F-6000 Type): d50 = 1.5 to 4.5 microns, d90 < 10 to 15 microns
  - Direct-Compression (DC) Tablet Grade: d50 = 150 to 220 microns (< 15% finer than 75 microns)
- Compendial Purity & Trace Contaminant Limits (E341(iii) / FCC / USP):
  - Fluoride (F-): <= 50 mg/kg (ppm) per E341(iii) & Ph. Eur. (<= 75 ppm per FCC / USP; typical < 20 to 35 ppm)
  - Arsenic (As): <= 1.0 mg/kg (ppm) per E341(iii) (<= 3.0 ppm per FCC / USP; typical < 0.5 ppm)
  - Lead (Pb): <= 1.0 mg/kg (ppm) per E341(iii) (<= 0.5 ppm in Infant Formula Grade)
  - Cadmium (Cd): <= 1.0 mg/kg (ppm) per E341(iii) (typical < 0.2 ppm)
  - Mercury (Hg): <= 1.0 mg/kg (ppm) per E341(iii) (typical < 0.05 ppm)
  - Aluminum (Al): <= 150 to 200 mg/kg (for food uses per EU Regulation 231/2012 where applicable)
  - Heavy Metals (as Pb): <= 10 to 15 mg/kg
  - Carbonate: Passes effervescence limit test

WHY EACH IMPORTANT PROPERTY OF TCP TRICALCIUM PHOSPHATE MATTERS IN PRACTICE

 Among all food-grade calcium phosphates, TCP Tricalcium Phosphate provides the highest calcium density (~38% Ca, compared to only 23.3% Ca in Dicalcium Phosphate Dihydrate CaHPO4·2H2O and 15.9% Ca in Monocalcium Phosphate Ca(H2PO4)2·H2O). Because TCP Tricalcium Phosphate is virtually insoluble at neutral pH (6.5 to 7.5), adding it to soy milk, oat milk, or dairy UHT beverages releases almost zero free Ca2+ ions into solution during 140 °C UHT sterilization—preventing calcium-induced protein denaturation, curdling, and UHT heat-exchanger fouling.

 Mesoporous Specific Surface Area (30–70 m2/g) and High Oil/Moisture Absorption:
The ability of 1.0% w/w TCP Tricalcium Phosphate to keep onion powder, garlic powder, table salt, or instant soup mixes free-flowing at 80% relative humidity depends entirely on its porous micro-sponge morphology and low bulk density (0.20 to 0.35 g/cm3). Dense, low-surface-area calcium salts fail to coat host crystals uniformly, whereas porous precipitated TCP Tricalcium Phosphate adsorbs surface moisture films and prevents inter-crystal capillary bridging.

 Neutral Slurry pH (7.0 to 8.0) and Non-Effervescent Stability in Acidic Media:
Unlike Calcium Carbonate (CaCO3, E170), which has an alkaline pH (~9.5), imparts a soapy/chalky taste, and reacts violently with citric or malic acid in fruit juices or effervescent blends to evolve CO2 gas (causing pouch/bottle bloating), TCP Tricalcium Phosphate is completely carbonate-free and non-gas-forming, buffering fruit juices, bakery doughs, and extruded cereals smoothly without flavor distortion.

 Brittle-Fracture Compaction Mechanics in Direct-Compression Tableting:
When granular DC-grade TCP Tricalcium Phosphate is compressed in a high-speed rotary tablet press, the porous spherical granules consolidate primarily by brittle fracture—shattering to create fresh, clean, high-energy bonding surfaces that are insensitive to over-lubrication by hydrophobic magnesium stearate and do not experience elastic recovery ("capping") at high turret speeds.

HOW DOES TCP TRICALCIUM PHOSPHATE WORK AT THE MOLECULAR AND PROCESS LEVEL?

 Physical Host-Guest Surface Coating and Capillary Moisture Trapping (Anticaking Mechanism):
In hygroscopic food and chemical powders (such as sodium chloride, sucrose, maltodextrin, whey permeate, or spray-dried spice extracts), ambient humidity condenses at particle contact points to form saturated liquid bridges; when temperature fluctuates, dissolved solute recrystallizes into solid bridges that cement the entire bag or silo into a rock-hard block. When 0.5% to 2.0% w/w of micronized TCP Tricalcium Phosphate (particle size 3 to 10 microns) is dry-blended with the coarser host powder (100 to 600 microns), electrostatic and van der Waals forces adhere the fine TCP Tricalcium Phosphate particles as a continuous "ball-bearing" spacer layer around each host crystal. This layer physically separates host surfaces (reducing the angle of repose and inter-particle friction) while the internal mesopores of TCP Tricalcium Phosphate preferentially wick away trace moisture and free oils before liquid bridges can form.

 Colloidal Suspension and Gastric Solubilization in Calcium-Fortified Beverages:
In UHT plant-based beverages and juices, ultra-fine micronized TCP Tricalcium Phosphate (d50 ~ 2 to 4 microns) is suspended within a weak shear-thinning hydrocolloid network (0.03% to 0.05% gellan gum or 0.12% xanthan/carrageenan). The sub-5-micron particle size eliminates gritty mouthfeel on the tongue (human sensory threshold is ~15 to 20 microns). Once swallowed, gastric hydrochloric acid (pH 1.5 to 2.5) rapidly protonates the orthophosphate groups of TCP Tricalcium Phosphate into soluble monocalcium phosphate:
Ca3(PO4)2 (solid) + 4 HCl (gastric acid)  --->  Ca(H2PO4)2 (soluble) + 2 CaCl2 (soluble)
delivering 100% bioavailable ionic Ca2+ and phosphate for intestinal absorption.

 Pickering Interfacial Stabilization in Polystyrene (EPS / GPPS) and Acrylic Bead Polymerization:
During suspension polymerization of styrene monomer (with or without pentane blowing agent for EPS) or methyl methacrylate (PMMA) in water at 85 to 130 °C, droplets of sticky partially polymerized monomer (50% to 75% conversion, the critical "sticky stage") collide and coalesce irreversibly into a solid reactor mass if unprotected. Sub-micron TCP Tricalcium Phosphate (0.15% to 0.60% w/w on monomer), activated in situ by 10 to 50 ppm of an anionic surfactant extender (such as sodium dodecylbenzenesulfonate SDBS or sodium persulfate), adsorbs densely at the monomer-water interface to form a rigid, non-coalescing solid particulate shell around each 0.5 to 2.0 mm monomer droplet. Once polymerization reaches 100% conversion, acidifying the reactor slurry to pH 1.5–2.0 with HCl dissolves the external TCP Tricalcium Phosphate coating completely, leaving crystal-clear, narrow-size-distribution polymer beads.

 Biomimetic Enamel Remineralization and Dentinal Tubule Occlusion in Oral Care:
In toothpaste and topical dental prophylactic pastes, micronized or functionalized TCP Tricalcium Phosphate supplies calcium and phosphate ions in the exact apatitic stoichiometry of tooth enamel, plugging exposed 1 to 3 micron dentinal tubules to block hydrodynamic nerve pain in sensitive teeth and nucleating new fluorapatite/hydroxyapatite mineral within incipient caries lesions.

WHAT PROBLEMS CAN TCP TRICALCIUM PHOSPHATE HELP SOLVE?

Eliminating Hard Caking, Silo Bridging, and Screw-Feeder Jamming in Hygroscopic Powders: Adding 0.5% to 2.0% w/w micronized TCP Tricalcium Phosphate solves severe lumping and caking in garlic/onion powders, powdered soups, vending-machine cocoa/coffee creamers, powdered sugar, baking powders, and dry chemical blends during humid storage.

Preventing Protein Curdling, Sedimentation, and Chalky Taste in Calcium-Fortified Plant Milks: Replacing soluble calcium salts (which curdle soy/oat proteins during UHT heating) or calcium carbonate (which causes alkaline off-notes and CO2 gassing) with ultra-fine micronized TCP Tricalcium Phosphate achieves 120 mg Ca per 100 mL nutrition claims with smooth mouthfeel and neutral flavor.

 Turning Sticky Liquid Oils, Oleoresins, and Vitamin Concentrates into Free-Flowing Dry Powders: Because porous precipitated TCP Tricalcium Phosphate absorbs up to 60%–90% of its weight in hydrophobic liquids while remaining dry to the touch, it converts sticky spice oleoresins, essential oils, vitamin E acetate, and liquid surfactants into free-flowing dry premixes.

Overcoming Poor Tablet Compressibility, Capping, and Moisture Degradation in Pharmaceuticals: Direct-Compression (DC) granular TCP Tricalcium Phosphate solves poor die filling and tablet capping in high-speed rotary presses while protecting moisture-sensitive APIs (such as aspirin, ascorbic acid, probiotics, and herbal extracts) due to its low free moisture and non-hygroscopic stability.

Preventing Reactor Fouling and Bead Agglomeration in Expandable Polystyrene (EPS) Polymerization: Sub-micron Polymerization-Grade TCP Tricalcium Phosphate prevents catastrophic "sticky-stage" droplet coalescence in EPS, GPPS, SAN, and PMMA suspension reactors and strips off completely with dilute acid without leaving organic PVA film haze on the polymer beads.

Eliminating Oily Skin Shine and Emulsion Phase Separation in Cosmetics: In pressed powders, foundations, and sunscreens, Cosmetic-Grade TCP Tricalcium Phosphate absorbs excess sebum without a heavy talc feel, provides soft-focus opacity, and stabilizes water-in-oil and oil-in-water Pickering emulsions.

BENEFITS FOR THE MANUFACTURER AND END USER

- Dual Nutritional Fortification (38% Calcium + 20% Phosphorus): Unlike calcium carbonate or calcium citrate (which provide zero phosphorus), TCP Tricalcium Phosphate delivers both bone-building minerals in the physiological ~2:1 Ca:P weight ratio of human bone.
- Ultra-Low Dosage Anticaking Economy: Just 5 to 15 kg of micronized TCP Tricalcium Phosphate per metric ton of dry food mix (0.5% to 1.5% w/w) guarantees 12 to 24 months of lump-free shelf life, outperforms coarse starches, and avoids the aluminum concerns of sodium aluminosilicate anticaking agents.
- Exceptional Thermal and pH Stability: Thermally stable above 1,100 °C and chemically inert across pH 5.5 to 11.0, TCP Tricalcium Phosphate survives UHT sterilization, twin-screw extrusion, baking, spray drying, and polymer melt processing without decomposition or discoloration.
- Clean-Label Regulatory Acceptance Worldwide: Recognized as GRAS by the US FDA (21 CFR 182.8217), approved as E341(iii) in the European Union and Turkish Food Codex, and compliant with Halal, Kosher, Vegan, Non-GMO, and Allergen-Free requirements.
- High-Speed Direct-Compression Tableting Productivity: Granular DC grades of TCP Tricalcium Phosphate flow effortlessly through hopper shoes (Carr's Compressibility Index < 15%) and compress into hard, rapid-disintegrating tablets without wet-granulation drying steps.

APPLICATIONS OF TCP TRICALCIUM PHOSPHATE

TCP Tricalcium Phosphate is utilized across a wide spectrum of food, beverage, pharmaceutical, oral-care, cosmetic, polymer, ceramic, and agricultural applications:
TCP Tricalcium Phosphate is utilized as a high-efficiency free-flowing agent, anticaking powder, moisture scavenger, and dry oil/flavor carrier in Table Salt, Onion & Garlic Powders, Spice & Seasoning Blends, Instant Soups, Non-Dairy Coffee Creamers, Powdered Drink Mixes, Baking Powder, Malted Milk Powders, and Powdered Sugar (E341(iii)).
TCP Tricalcium Phosphate is used for high-potency Calcium and Phosphorus Nutritional Fortification, pH Buffering, and Dough Conditioning in UHT Plant-Based Milks (Soy, Oat, Almond, Coconut), Fortified Fruit Juices, Infant Formulas, Breakfast Cereals, Bread/Tortilla Flours, Extruded Snacks, Surimi, and Processed Cheese.
Also TCP Tricalcium Phosphate is utilized in the preparation of Pharmaceutical Tablets, Hard Capsules, and Chewable/Effervescent Nutraceutical Supplements (USP / Ph. Eur.) as a Direct-Compression (DC) diluent, brittle-fracture binder, glidant, and active dietary calcium/phosphorus source.

For Oral Care Toothpastes, Desensitizing Dental Gels, Prophylactic Polishing Pastes, and Chewing Gums, TCP Tricalcium Phosphate is used as a biomimetic enamel remineralizing agent, dentinal tubule occluder for tooth sensitivity, and gentle plaque-cleaning dental abrasive.
In Color Cosmetics, Pressed & Loose Face Powders, Mattifying Foundations, Deodorants, and Skin-Care Creams (INCI: TRICALCIUM PHOSPHATE / HYDROXYAPATITE), TCP Tricalcium Phosphate is employed as a sebum-absorbing mattifier, soft-focus opacifier, and solid-particle Pickering emulsion stabilizer.
Furthermore, TCP Tricalcium Phosphate is applied as the primary inorganic Pickering suspension stabilizer and bead-size regulator in the Aqueous Suspension Polymerization of Expandable Polystyrene (EPS), General-Purpose Polystyrene (GPPS), Styrene-Acrylonitrile (SAN), Acrylonitrile-Butadiene-Styrene (ABS), and Polymethyl Methacrylate (PMMA) Acrylic Beads.
Additionally, TCP Tricalcium Phosphate is utilized in Synthetic Bone Graft Substitutes & Orthopedic/Dental Bioceramics (beta-TCP, alpha-TCP, and Calcium Phosphate Bone Cements), Bone China & Porcelain Ceramic Fluxes/Opacifiers, Halophosphate Fluorescent Lamp Luminophores, Hydroxyapatite Protein Chromatography Columns, and Defluorinated Animal Feed Mineral Supplements.

WHICH INDUSTRIES USE TCP TRICALCIUM PHOSPHATE?

- The Food, Beverage, Dairy, Bakery, Spice, and Nutritional Ingredient Industry uses TCP Tricalcium Phosphate (E341(iii) / FCC) as an anticaking flow agent, calcium/phosphorus fortificant, dough conditioner, and frying-oil filter/deacidification aid.
- The Pharmaceutical, Nutraceutical, and Dietary Supplement Manufacturing Industry utilizes TCP Tricalcium Phosphate (USP / Ph. Eur.) as a direct-compression tablet excipient, capsule filler, and bone-health mineral active.
- The Oral Care, Dental Restorative, and Personal Care / Cosmetics Industry relies on TCP Tricalcium Phosphate for tooth enamel remineralization, sensitivity relief, gentle dental polishing, skin mattification, and emulsion stabilization.
- The Petrochemical Polymer, Polystyrene (EPS / GPPS), and Acrylic Resin Manufacturing Industry employs TCP Tricalcium Phosphate as a clean-washing inorganic suspension stabilizer for spherical bead polymerization.
- The Biomedical Engineering, Orthopedic Implant, and Dental Biomaterials Industry uses high-purity crystalline beta-TCP and alpha-TCP Tricalcium Phosphate to manufacture resorbable bone void fillers, 3D-printed bone scaffolds, and self-setting bone cements.
- The Technical Ceramics, Bone China, Lighting Phosphor, Biotechnology Chromatography, and Animal Feed Industry utilizes TCP Tricalcium Phosphate as a porcelain whitening flux, phosphor host matrix, protein purification adsorbent, and livestock mineral supplement.

USE OF TCP TRICALCIUM PHOSPHATE IN FOOD, BEVERAGE, PHARMACEUTICAL AND ORAL CARE FORMULATIONS

- Dry Food Mixes, Spices, and Table Salt Anticaking with TCP Tricalcium Phosphate: In hygroscopic dry blends—including garlic/onion powders, taco/soup seasonings, instant cocoa/coffee vending mixes, powdered sugar, and table salt—micronized TCP Tricalcium Phosphate (d50 = 3 to 10 microns, loose bulk density 0.20 to 0.35 g/cm3) is dry-blended at 0.5% to 2.0% w/w (5 to 20 g/kg). When compounding spice blends containing liquid essential oils or oleoresins, blending the liquid oil onto TCP Tricalcium Phosphate first (at a 1:1 to 1:1.5 oil-to-TCP weight ratio) before adding salt and carriers prevents oil weeping and caking throughout shelf life.
- UHT Plant-Based Beverages, Dairy, and Bakery Fortification with TCP Tricalcium Phosphate: To fortify soy, oat, almond, or rice milk to match dairy milk's calcium level (120 mg elemental Ca per 100 mL), formulators dose 0.31% to 0.33% w/w (3.1 to 3.3 g/L) of ultra-fine micronized TCP Tricalcium Phosphate (d50 <= 2.5 to 4.0 microns, ~38% Ca) co-suspended with 0.035% to 0.045% w/w high-acyl gellan gum or carrageenan/xanthan gum. In bread and tortilla doughs, 0.25% to 0.75% w/w TCP Tricalcium Phosphate acts as a calcium dough conditioner and phosphorus yeast nutrient.
- Pharmaceutical Direct-Compression Tableting and Oral Care with TCP Tricalcium Phosphate: In pharmaceutical solid dosage forms, DC-grade granular TCP Tricalcium Phosphate (d50 ~ 180 microns, bulk density ~0.68 g/cm3) is blended at 15% to 65% w/w with APIs, 2% to 4% croscarmellose sodium or crospovidone superdisintegrant, and 0.5% to 1.0% magnesium stearate or sodium stearyl fumarate lubricant. In remineralizing toothpastes, 2.0% to 15.0% w/w micronized TCP Tricalcium Phosphate (or sodium lauryl sulfate / fumaric acid surface-functionalized fTCP at 0.5% to 2.0% w/w) delivers bioavailable calcium and phosphate without prematurely precipitating sodium fluoride in the toothpaste tube.

USE OF TCP TRICALCIUM PHOSPHATE IN POLYSTYRENE (EPS / GPPS) SUSPENSION POLYMERIZATION, CERAMICS AND BIOMEDICAL BONE GRAFTS

- Expandable Polystyrene (EPS), GPPS, SAN, and PMMA Suspension Polymerization with TCP Tricalcium Phosphate: In batch aqueous suspension polymerization reactors producing EPS insulation beads or PMMA optical beads, sub-micron precipitated TCP Tricalcium Phosphate (d50 = 0.4 to 1.2 microns, BET surface area 35 to 65 m2/g) is dosed at 0.15% to 0.60% w/w based on styrene monomer, paired with 15 to 40 ppm of an anionic surfactant extender (sodium dodecylbenzenesulfonate or potassium persulfate). The TCP Tricalcium Phosphate particles assemble into a protective Pickering monolayer at the monomer-water interface, controlling average bead diameter (typically 0.6 to 1.8 mm) and preventing reactor-scale chunking during the 90 °C polymerization cycle and 120 °C pentane impregnation stage.
- Biomedical Resorbable Bone Grafts, Ceramics, and Cosmetics with TCP Tricalcium Phosphate: Phase-pure sintered beta-TCP granules (porosity 60% to 75%, pore size 100 to 500 microns) are implanted into orthopedic and periodontal bone defects where osteoclasts gradually resorb the beta-TCP over 6 to 18 months and osteoblasts replace it with natural woven bone. In Bone China ceramics, 35% to 50% w/w calcined TCP Tricalcium Phosphate (synthetic bone ash) acts as a high-temperature flux and crystalline body former imparting classic translucency and mechanical strength.

FORMULATION AND PROCESS CONSIDERATIONS WHEN USING TCP TRICALCIUM PHOSPHATE

Selecting the Correct Particle Size and Bulk Density Grade for the Target Application:
Never substitute a coarse Direct-Compression Granular TCP Tricalcium Phosphate (d50 ~ 180 microns) into a beverage or anticaking application, nor use a fluffy micronized Anticaking TCP Tricalcium Phosphate (d50 ~ 5 microns, bulk density 0.22 g/cm3) directly on a high-speed rotary tablet press without granulation:
- For Anticaking in Dry Mixes & Spices: Use Fine / Micronized Powder TCP Tricalcium Phosphate (325 mesh or F-6000 grade, d50 = 3 to 10 microns, bulk density 0.20 to 0.35 g/cm3) to maximize surface coverage per gram.
- For UHT Plant Milks & Liquid Beverages: Use Ultra-Fine Micronized TCP Tricalcium Phosphate (d50 <= 2.5 to 4.0 microns, d99 < 15 microns) plus a suspending hydrocolloid (gellan/xanthan) to prevent sediment at the bottom of the carton.
- For Rotary Tablet Presses: Use Spherical Direct-Compression (DC) Granular TCP Tricalcium Phosphate (d50 = 150 to 220 microns, bulk density 0.60 to 0.80 g/cm3).

Order of Addition in Dry Blending for Anticaking and Oil Carrying:
When using TCP Tricalcium Phosphate as an anticaking agent in hygroscopic crystalline powders (salt, sugar, citric acid, MSG), add TCP Tricalcium Phosphate during the final 3 to 5 minutes of low-shear ribbon or paddle blending so the fine TCP particles coat the exterior of the host crystals without being abraded or buried. Conversely, when using TCP Tricalcium Phosphate as an oil/oleoresin carrier, spray the liquid oil directly onto the tumbling TCP Tricalcium Phosphate sub-blend first before introducing water-soluble crystalline ingredients.

Preventing Fluoride Inactivation in Fluoridated Toothpastes:
In aqueous toothpastes containing free ionic fluoride (such as NaF), adding high levels of unmodified calcium salts can slowly form insoluble CaF2 over prolonged high-temperature storage if the formulation is not buffered or chelated. To maximize soluble fluoride bioavailability alongside TCP Tricalcium Phosphate, either pair TCP Tricalcium Phosphate with Sodium Monofluorophosphate (SMFP, Na2PO3F, which does not react with calcium until hydrolyzed by salivary enzymes in the mouth) or use surface-functionalized TCP Tricalcium Phosphate (coated with sodium lauryl sulfate, carboxylic acids, or pyrophosphate).

TYPICAL USE LEVELS AND INITIAL FORMULATION APPROACHES FOR TCP TRICALCIUM PHOSPHATE

Typical commercial incorporation levels for TCP Tricalcium Phosphate depend on functional role, regulatory ceiling (such as EU E341(iii) P2O5 limits), and target calcium claim:
- Table Salt, Spice & Seasoning Blends, Garlic/Onion Powders, and Instant Soups (Anticaking Agent E341(iii)): TCP Tricalcium Phosphate is incorporated at 0.5% to 2.0% w/w (5.0 to 20.0 g/kg, typically 0.8% to 1.5% w/w; up to 1.0%–2.0% w/w under EU E341(iii) and US FDA 21 CFR standards).
- Powdered Beverage Mixes, Vending Cocoa/Coffee Creamers, and Powdered Sugar (Free-Flowing Agent): TCP Tricalcium Phosphate is dosed at 0.5% to 1.5% w/w on dry powder weight.
- UHT Plant-Based Beverages (Soy, Oat, Almond Milk) and Fortified Fruit Juices (Calcium Fortification): TCP Tricalcium Phosphate (~38% elemental Ca) is incorporated at 0.30% to 0.35% w/w (3.0 to 3.5 g/L) to deliver 115 to 130 mg elemental Calcium per 100 mL serving (15% NRV/DV).
- Breakfast Cereals, Extruded Snacks, Infant Cereals, and Bakery Flour Fortification: TCP Tricalcium Phosphate is added at 0.4% to 1.8% w/w on dry flour/cereal weight.
- Pharmaceutical Direct-Compression (DC) Tablets and Nutraceutical Calcium-Vitamin D3 Tablets: TCP Tricalcium Phosphate DC Granular Grade is used at 15.0% to 75.0% w/w of total tablet weight (a 1,350 mg tablet containing 660 mg TCP delivers 250 mg elemental Calcium).
- Remineralizing and Desensitizing Toothpastes & Dental Polishing Pastes: TCP Tricalcium Phosphate is incorporated at 1.0% to 20.0% w/w (0.5% to 3.0% w/w as an active remineralizing adjunct; 10% to 25% w/w as the primary low-RDA dental abrasive).
- Cosmetic Pressed Powders, Mattifying Foundations, and Emulsions: TCP Tricalcium Phosphate is dosed at 2.0% to 12.0% w/w as a sebum-absorbing mattifier and opacifier.
- Expandable Polystyrene (EPS), GPPS, and PMMA Suspension Polymerization Reactors: Polymerization-Grade TCP Tricalcium Phosphate is dosed at 0.15% to 0.65% w/w calculated on monomer weight (paired with 15 to 40 ppm anionic surfactant extender).
The four laboratory and pilot frameworks below illustrate preliminary R&D evaluation protocols for qualified technical personnel formulating with TCP Tricalcium Phosphate.

EXAMPLE 1: CALCIUM FORTIFICATION AND UHT SUSPENSION STABILITY OF AN OAT / SOY PLANT-BASED BEVERAGE (120 MG CA / 100 ML)

Purpose: To formulate a calcium-fortified UHT plant-based beverage delivering 120 mg elemental calcium per 100 mL using ultra-fine micronized TCP Tricalcium Phosphate (E341(iii)), and evaluate UHT heat stability at 140 °C, pH neutrality, mouthfeel, and 90-day sedimentation resistance.
Initial pilot beverage formulation (per 1,000.0 g batch, pH 6.8 to 7.2, total solids ~10.5% w/w):
- Enzyme-Hydrolyzed Oat Base or Hulled Soy Protein Extract Base (10.0% dry solids in water): 981.5 g
- Ultra-Fine Micronized TCP Tricalcium Phosphate (CAS 7758-87-4 / 1306-06-5, Ataman Kimya Food Grade E341(iii), 38.0% elemental Ca, d50 = 2.5 microns, d99 < 12 microns): 3.20 g (0.32% w/w, delivering 1,216 mg elemental Ca per kg = 120 mg Ca / 100 mL)
- High-Acyl Gellan Gum (fluid-gel suspending hydrocolloid): 0.40 g (0.04% w/w)
- Sunflower Oil (refined winterized, mouthfeel enhancer): 12.0 g (1.20% w/w)
- Sunflower Lecithin or Mono-/Diglycerides Emulsifier: 1.0 g (0.10% w/w)
- Sea Salt (flavor enhancer): 0.90 g (0.09% w/w)
- Sucrose or Dry Malt Syrup (for dry-blending TCP and gellan gum to prevent lumping): 1.0 g (0.10% w/w)
Laboratory evaluation procedure:
- Stage 1 (Dry Pre-Blend and High-Shear Dispersion): Dry-blend the 3.20 g ultra-fine micronized TCP Tricalcium Phosphate, 0.40 g high-acyl gellan gum, 0.90 g sea salt, and 1.0 g sucrose for 3 minutes until uniform. Disperse this powder pre-blend into the 981.5 g oat/soy base at 25 to 30 °C using a high-shear rotor-stator mixer (3,500 rpm for 10 minutes), then blend in the 12.0 g sunflower oil and 1.0 g emulsifier at 55 °C.
- Stage 2 (UHT Sterilization and Two-Stage Homogenization): Preheat the beverage dispersion to 80 °C, pass through a direct or indirect UHT sterilizer at 140 °C for 4.0 seconds (confirming zero protein coagulation or plate-heat-exchanger fouling due to TCP Tricalcium Phosphate's ultra-low ionic Ca2+ release), cool to 75 °C, and homogenize in a two-stage high-pressure homogenizer at 200 bar (first stage) / 40 bar (second stage) to activate the gellan gum fluid-gel network around the 2.5-micron TCP Tricalcium Phosphate particles. Cool to 20 °C and fill aseptically into sterile PET bottles or Tetra Pak cartons.
- Stage 3 (Quality Control and Shelf-Life Testing): Measure beverage pH (target 6.9 to 7.1), Brookfield LV viscosity at 20 °C (60 rpm: target 12 to 22 mPa·s), wet-sieve residue on a 45-micron (325-mesh) screen (target 0.00%), sensory mouthfeel (confirming zero chalkiness or metallic aftertaste compared to a calcium carbonate control), and bottom sediment thickness after 30, 60, and 90 days at 25 °C (target < 0.5 mm soft, easily redispersible layer).

EXAMPLE 2: ANTICAKING AND ESSENTIAL-OIL CARRYING EVALUATION IN A HYGROSCOPIC GARLIC-ONION SEASONING POWDER BLEND

Purpose: To evaluate the moisture-sorption anticaking performance, angle of repose, orifice flow rate, and accelerated humid-cabinet caking resistance of a hygroscopic garlic-onion-salt seasoning mix stabilized with 1.2% w/w micronized TCP Tricalcium Phosphate (F-6000 / E341(iii)).
Initial dry seasoning formulation (per 1,000.0 g batch):
- Dehydrated Garlic Powder (100 mesh, highly hygroscopic amorphous fructan matrix): 350.0 g (35.0% w/w)
- Dehydrated Onion Powder (100 mesh, hygroscopic): 300.0 g (30.0% w/w)
- Fine Vacuum-Evaporated Sodium Chloride Salt (60–100 mesh): 260.0 g (26.0% w/w)
- Hydrolyzed Vegetable Protein (HVP) + Yeast Extract Powder (extremely hygroscopic): 60.0 g (6.0% w/w)
- Black Pepper & Paprika Liquid Oleoresin Blend (sticky viscous liquid flavor extract): 18.0 g (1.8% w/w)
- Micronized Anticaking TCP Tricalcium Phosphate (CAS 7758-87-4, Ataman Kimya Food Grade E341(iii), loose bulk density 0.24 g/cm3, d50 = 5.0 microns, specific surface area ~55 m2/g): 12.0 g (1.2% w/w total: 6.0 g used as oleoresin carrier + 6.0 g used as final surface-coating anticaking agent)
Laboratory evaluation procedure:
- Stage 1 (Liquid Oleoresin Plating onto TCP Carrier): In a high-intensity laboratory ploughshare or planetary mixer, blend 6.0 g of the micronized TCP Tricalcium Phosphate with 50.0 g of the fine sodium chloride salt, then spray in the 18.0 g liquid black pepper/paprika oleoresin over 3 minutes. The porous TCP Tricalcium Phosphate absorbs the sticky oleoresin into its internal mesopores, yielding a completely dry, free-flowing orange-red flavor concentrate.
- Stage 2 (Main Blending and Final Surface-Coating Addition): Charge the 350.0 g garlic powder, 300.0 g onion powder, 60.0 g HVP/yeast extract, and remaining 210.0 g salt into a V-blender or ribbon blender with the plated oleoresin pre-mix and blend for 10 minutes. Finally, add the remaining 6.0 g (0.6% w/w) of micronized TCP Tricalcium Phosphate and tumble gently for 3 minutes so the 5-micron TCP particles coat the exterior of the hygroscopic garlic, onion, and HVP granules.
- Stage 3 (Flowability and Accelerated Caking Testing): Compare the 1.2% TCP-treated seasoning against an untreated control (0.0% TCP): measure static Angle of Repose (ISO 4324: target <= 34 degrees with TCP versus > 48 degrees untreated), Carr's Compressibility Index (target <= 16%), and funnel flow rate through a 15 mm orifice. Place 100 g open dishes of both blends into a constant-humidity chamber at 30 °C and 75% Relative Humidity for 72 hours, followed by drying at 40 °C for 24 hours under a 100 g/cm2 compaction weight: verify that the TCP Tricalcium Phosphate batch passes > 95% through a 2.0 mm sieve with gentle tapping whereas the untreated control cements into a solid cake.

EXAMPLE 3: DIRECT-COMPRESSION (DC) PHARMACEUTICAL TABLET FORMULATION OF A 500 MG ELEMENTAL CALCIUM + VITAMIN D3 SUPPLEMENT

Purpose: To evaluate powder hopper flow, compaction force-hardness profile, friability (USP <1216>), and disintegration time (USP <701>) of a direct-compression chewable/swallowable Calcium + Vitamin D3 tablet using granular DC-grade TCP Tricalcium Phosphate.
Initial direct-compression tablet formulation (per 1,500.0 mg tablet weight; batch size 1,500.0 g = 1,000 tablets):
- Direct-Compression Granular TCP Tricalcium Phosphate (CAS 7758-87-4 / 1306-06-5, Ataman Kimya USP/Ph. Eur. DC Grade, 38.0% elemental Ca, d50 = 180 microns, bulk density 0.68 g/cm3): 1,316.0 mg per tablet (87.73% w/w, delivering 500.0 mg elemental Calcium and ~260.0 mg elemental Phosphorus per tablet)
- Spray-Dried Mannitol / Sorbitol Co-Processed Direct-Compression Binder: 120.0 mg per tablet (8.00% w/w)
- Croscarmellose Sodium (USP superdisintegrant): 45.0 mg per tablet (3.00% w/w)
- Cholecalciferol (Vitamin D3) Dry Stabilized Beadlets (100,000 IU/g = 100 IU/mg): 10.0 mg per tablet (0.67% w/w, delivering 1,000 IU / 25 mcg Vitamin D3 per tablet)
- Magnesium Stearate (vegetable-grade tablet lubricant): 9.0 mg per tablet (0.60% w/w)
Laboratory evaluation procedure:
- Screen the 1,316.0 g granular DC-grade TCP Tricalcium Phosphate, 120.0 g mannitol/sorbitol binder, 45.0 g croscarmellose sodium, and 10.0 g Vitamin D3 beadlets through a 1.0 mm (18-mesh) security sieve and blend in a laboratory V-blender at 22 rpm for 15 minutes.
- Screen the 9.0 g magnesium stearate through a 250-micron (60-mesh) sieve, add to the V-blender, and lubricate for exactly 3 minutes (thanks to the brittle-fracture compaction mechanism of TCP Tricalcium Phosphate, tablet hardness is unaffected by magnesium stearate lubrication).
- Measure bulk and tapped density of the final blend (Hausner Ratio target <= 1.15; Carr's Index <= 13%), then compress 1,500 mg caplet-shaped tablets on an instrumented rotary tablet press at compression forces of 12, 18, and 24 kN.
- Verify weight variation (RSD <= 1.0%), tablet crushing hardness at 18 kN (target 160 to 210 N / 16 to 21 kp with zero capping or lamination), USP <1216> friability after 100 revolutions (target <= 0.25%), USP <701> disintegration time in 37 °C water (target <= 6 minutes), and USP <711> dissolution in 0.1 N HCl (>= 85% calcium dissolved in 30 minutes).

EXAMPLE 4: PICKERING SUSPENSION POLYMERIZATION OF STYRENE MONOMER (GPPS / EPS BEADS) STABILIZED WITH SUB-MICRON TCP TRICALCIUM PHOSPHATE

Purpose: To evaluate droplet size control, "sticky-stage" coalescence prevention, and post-polymerization acid-wash bead clarity in a bench-scale aqueous suspension polymerization of Styrene Monomer stabilized with 0.35% w/w Polymerization-Grade TCP Tricalcium Phosphate.
Initial reactor charge (per 2,000.0 g total autoclave batch; 1:1 phase ratio of water to styrene monomer):
- Deionized Water (continuous aqueous suspension phase, de-aerated with nitrogen): 995.0 g
- Polymerization-Grade Sub-Micron TCP Tricalcium Phosphate (CAS 7758-87-4 / 1306-06-5, Ataman Kimya Technical Suspension Grade, d50 = 0.6 microns, BET surface area ~50 m2/g, primary Pickering stabilizer): 3.50 g (0.35% w/w based on styrene monomer)
- Sodium Dodecylbenzenesulfonate (SDBS, 10% w/w aqueous solution, anionic surfactant extender for modifying TCP contact angle): 0.30 g of 10% solution (delivering 0.030 g = 30 ppm active SDBS on monomer)
- Styrene Monomer (inhibited TBC removed or compensated, 99.8% purity): 1,000.0 g
- Dibenzoyl Peroxide (BPO, 75% water-damped, first-stage low-temperature free-radical initiator): 3.20 g (delivering 0.24% w/w active BPO on monomer)
- tert-Butyl Peroxybenzoate (TBPB, second-stage high-temperature finishing initiator): 1.50 g (0.15% w/w on monomer)
Laboratory evaluation procedure:
- Charge the 995.0 g deionized water, 3.50 g sub-micron TCP Tricalcium Phosphate, and 0.30 g of 10% SDBS solution into a 3-liter baffled stainless-steel jacketed pressure reactor equipped with a 3-blade Pfaudler/retreat-curve impeller and stir at 350 rpm for 15 minutes at 25 °C to disperse the Pickering stabilizer.
- Dissolve the BPO and TBPB initiators in the 1,000.0 g Styrene Monomer, charge the monomer phase into the reactor under a nitrogen blanket, seal the autoclave, and adjust agitation to 280 rpm.
- Heat to 90 °C and maintain for 5.0 hours (first stage, reaching ~85% monomer conversion across the critical sticky stage without droplet agglomeration; for EPS production, 6.0% to 7.0% w/w n-pentane/isopentane blowing agent is injected under pressure at 3.5 hours), then ramp to 125 °C for 2.5 hours to reduce residual styrene monomer to < 500 ppm.
- Cool the reactor slurry to 40 °C, acidify the aqueous phase to pH 1.5 by adding 30% hydrochloric acid (quantitatively dissolving the surface TCP Tricalcium Phosphate coating into water-soluble calcium chloride and phosphoric acid within 20 minutes), centrifuge and wash the polystyrene beads with deionized water, dry at 50 °C, and sieve-analyze: confirm 0.0% reactor wall crust, spherical bead yield > 99.5%, narrow particle size distribution (d50 = 0.95 mm, > 85% within 0.7 to 1.4 mm), and crystal-clear bead optical transparency.

COMPATIBILITY AND INCOMPATIBILITY OF TCP TRICALCIUM PHOSPHATE

- Synergistic Combinations with TCP Tricalcium Phosphate:
  - In Beverages & Liquid Suspensions: Exhibits strong suspension synergy with high-acyl gellan gum, xanthan gum, kappa/iota-carrageenan, microcrystalline cellulose / CMC co-processed gels, and sunflower/soy lecithin.
  - In Oral Care & Remineralization: Synergizes with Sodium Monofluorophosphate (SMFP, CAS 10163-15-2), xylitol, potassium nitrate (desensitizer), silica abrasives, and surface-modifying anionic surfactants (SLS) or carboxylic acids (fumaric/citric acid).
  - In Direct-Compression Tableting: Synergizes with microcrystalline cellulose (MCC, Avicel PH-102), spray-dried lactose, mannitol, sorbitol, croscarmellose sodium, sodium starch glycolate, and Vitamin D3 / Vitamin K2.
  - In Suspension Polymerization: Synergizes with trace anionic surfactant extenders (sodium dodecylbenzenesulfonate, sodium persulfate, sodium pyrophosphate) at 10 to 50 ppm.
- Chemical & Formulation Incompatibilities:
  - Strong Mineral and Organic Acids: TCP Tricalcium Phosphate dissolves in hydrochloric, nitric, phosphoric, and concentrated citric/lactic acids below pH 4.0 to release free Ca2+ ions (and reacts with concentrated sulfuric acid to precipitate calcium sulfate gypsum). In acidified protein drinks (pH < 4.2), partial dissolution of TCP Tricalcium Phosphate must be accounted for with chelating citrates or pectin stabilizers.
  - Tetracycline, Fluoroquinolone, and Bisphosphonate Pharmaceuticals: Like all divalent calcium salts, oral co-administration of TCP Tricalcium Phosphate chelates tetracycline antibiotics, ciprofloxacin/fluoroquinolones, levothyroxine, iron salts, and bisphosphonates in the gastrointestinal tract, reducing drug absorption unless dosed 2 to 4 hours apart.
  - Unstabilized Free Sodium Fluoride in Aqueous Pastes: High loadings of unmodified TCP Tricalcium Phosphate in high-water NaF gels can slowly bind free F- ions over long storage unless formulated with SMFP or surface-functionalized TCP.

TCP TRICALCIUM PHOSPHATE AND DICALCIUM PHOSPHATE DIHYDRATE / ANHYDROUS (DCP, E341(II), CAS 7789-77-7 / 7757-93-9)

Dicalcium Phosphate (CaHPO4·2H2O, ~23.3% Ca, or anhydrous CaHPO4, ~29.5% Ca) has a lower calcium content and a denser, blockier crystal habit than precipitated TCP Tricalcium Phosphate (~38% Ca). While DCP is widely used as a coarse tablet filler and standard toothpaste abrasive, DCP lacks the high mesoporous surface area and oil/moisture absorption capacity of micronized TCP Tricalcium Phosphate, making TCP Tricalcium Phosphate far superior as an anticaking agent (at 0.5% to 1.5% w/w) and providing 30% to 60% more elemental calcium per gram in fortified beverages and supplements.

TCP TRICALCIUM PHOSPHATE AND MONOCALCIUM PHOSPHATE (MCP, E341(I), CAS 7758-23-8)

Monocalcium Phosphate (Ca(H2PO4)2·H2O, ~15.9% Ca) is moderately water-soluble and strongly acidic (slurry pH ~ 3.0 to 4.5), functioning primarily as a fast-acting chemical leavening acid in baking powder to release CO2 from sodium bicarbonate. By contrast, TCP Tricalcium Phosphate is practically water-insoluble and pH-neutral (pH 6.8 to 8.5), used inside baking powder not as a leavening acid, but as a moisture-absorbing anticaking shield to prevent premature reaction between MCP and sodium bicarbonate during storage!

TCP TRICALCIUM PHOSPHATE AND CALCIUM CARBONATE (E170, CAS 471-34-1)

Calcium Carbonate (CaCO3, 40.0% Ca) provides a similar elemental calcium percentage to TCP Tricalcium Phosphate (~38% Ca), but Calcium Carbonate contains zero phosphorus, has an alkaline pH (~9.0 to 10.0) that imparts a soapy/chalky taste to soy and oat milks, and reacts with food or gastric acids to evolve carbon dioxide (CO2) gas—causing package swelling in acidic beverages and gastric bloating/flatulence in consumers. TCP Tricalcium Phosphate is completely carbonate-free, evolves zero gas, and supplies both calcium and phosphorus at a neutral pH.

TCP TRICALCIUM PHOSPHATE AND SILICON DIOXIDE (FUME / PRECIPITATED SILICA, E551, CAS 7631-86-9)

Amorphous Silicon Dioxide (E551) is a synthetic anticaking agent with high moisture absorption, but it provides zero nutritional value, creates dusty handling hazards, and faces regulatory or "clean-label" restrictions in certain organic, infant, or silica-free product lines. TCP Tricalcium Phosphate (E341(iii)) provides comparable free-flowing anticaking performance at 0.5% to 2.0% w/w while simultaneously enriching the food product with bioavailable dietary calcium and phosphorus.

QUALITY GRADES, QUALITY CONTROL AND PURCHASING CRITERIA FOR TCP TRICALCIUM PHOSPHATE

Ataman Kimya supplies TCP Tricalcium Phosphate in five specialized commercial grades tailored to industry standards:
Food & Beverage Anticaking / Fortification Grade TCP Tricalcium Phosphate (E341(iii) / FCC / JECFA):
Available both as Standard 325-Mesh Fine Powder (d50 ~ 6 to 12 microns, bulk density 0.22 to 0.35 g/cm3) for spice/salt anticaking and as Ultra-Fine Micronized Grade (F-6000 type, d50 = 2.0 to 4.0 microns) for UHT plant milks, juices, and infant nutrition. Meets strict EU E341(iii) limits: Ca 34.0%–40.0%, Fluoride <= 50 ppm, Arsenic <= 1 ppm, Lead <= 1 ppm, Cadmium <= 1 ppm, Mercury <= 1 ppm.
Pharmaceutical & Nutraceutical Direct-Compression Grade TCP Tricalcium Phosphate (USP-NF / Ph. Eur. / BP):
Available as Spherical DC Granules (d50 = 150 to 220 microns, bulk density 0.60 to 0.80 g/cm3) for high-speed rotary tableting and as Fine USP Powder. Manufactured under cGMP/EXCiPACT hygiene standards with full pharmacopoeial monograph compliance and elemental impurity (ICH Q3D) documentation.
Oral Care & Cosmetic Grade TCP Tricalcium Phosphate (INCI: TRICALCIUM PHOSPHATE / HYDROXYAPATITE):
Controlled particle-size microcrystalline powder (d50 = 3 to 8 microns) with high whiteness (L-value >= 97.0), low RDA abrasivity, and microbiological purity (Total Aerobic Microbial Count < 100 CFU/g) for remineralizing toothpastes and mattifying cosmetics.
Suspension-Polymerization Grade TCP Tricalcium Phosphate (EPS / GPPS / PMMA Grade):
High-surface-area sub-micron apatitic TCP (d50 = 0.4 to 1.2 microns, BET surface area 40 to 65 m2/g, carbonate-free) engineered for narrow bead-size distribution and rapid acid washout in styrene and acrylic polymerization reactors.
Defluorinated Feed Grade & Ceramic / Biomedical Grade TCP Tricalcium Phosphate:
Includes high-digestibility livestock/poultry/aquaculture Feed Grade TCP (P >= 18.0%, Ca >= 32.0%, F <= 0.18%) and phase-pure calcined beta-TCP / alpha-TCP powders for bone china ceramics and biomedical bone-graft engineering.

STORAGE AND HANDLING OF TCP TRICALCIUM PHOSPHATE

- Commercial Packaging Formats from Ataman Kimya:
  - 20 kg or 25 kg multi-wall kraft paper or woven polypropylene bags with an inner moisture-proof polyethylene (PE) liner, palletized and stretch-wrapped (typically 40 bags = 800 to 1,000 kg per pallet).
  - 25 kg fiberboard drums with double PE inner liners for USP/Ph. Eur. Pharmaceutical and Cosmetic grades.
  - 500 kg to 1,000 kg Flexible Intermediate Bulk Containers (FIBC / Big Bags with PE liner and bottom discharge spout) for industrial food, polymer, ceramic, and feed plants.
- Storage Conditions and Shelf Life:
  - Store TCP Tricalcium Phosphate in tightly sealed original packaging in a cool, dry, well-ventilated indoor warehouse (recommended 5 to 30 °C, relative humidity < 65%), elevated on pallets away from damp floors, direct sunlight, strong acids, and odorous chemicals.
  - Because micronized TCP Tricalcium Phosphate has a high porous surface area designed to adsorb ambient humidity and volatile odors, always reseal partially used bags immediately after weighing; if left open in a humid room, the powder will pre-absorb atmospheric moisture and lose its anticaking capacity.
  - Shelf Life: Minimum 24 to 36 months (2 to 3 years) from date of manufacture when stored unopened in original dry packaging.
- Transport Classification (ADR / RID / ADN / IMDG / IATA-DGR):
  - UN Number: Not regulated as dangerous goods (Non-Hazardous Cargo across road, rail, sea, and air transport).
  - Marine Pollutant (IMDG): No.

FIRST AID MEASURES AND SAFETY INFORMATION FOR TCP TRICALCIUM PHOSPHATE

- Toxicological and Physiological Safety Profile:
  - TCP Tricalcium Phosphate is non-toxic, non-corrosive, non-sensitizing, and an essential dietary mineral component of the human body (Rat Acute Oral LD50 > 5,000 mg/kg bw; Rabbit Acute Dermal LD50 > 2,000 mg/kg bw). It is affirmed as GRAS by the US FDA (21 CFR 182.8217) and approved by EFSA/JECFA as E341(iii) with an MTDI (Maximum Tolerable Daily Intake) for total dietary phosphates of 40 to 70 mg P/kg bw/day.
  - Workplace Dust Exposure: Like any insoluble inorganic mineral powder, inhalation of high airborne concentrations of fine TCP Tricalcium Phosphate dust during bulk bag dumping or blending can cause temporary mechanical irritation or dryness of the nose, throat, and upper respiratory tract (OSHA PEL / ACGIH TLV for nuisance particulates not otherwise regulated: 10 mg/m3 inhalable dust, 3 to 5 mg/m3 respirable dust).
- Personal Protective Equipment (PPE) & Dust Control:
  - Provide local exhaust dust extraction at bag-dumping stations, ribbon blenders, and tablet presses.
  - Wear safety glasses with side shields (EN 166), protective nitrile or cotton-lined work gloves (to prevent skin dryness during prolonged powder handling), and a particulate dust mask (EN 149 FFP2 or NIOSH N95) when handling fine micronized powders in bulk.
- First Aid Measures:
  - Inhalation of Dust: Move the person to fresh air, blow nose, and rinse mouth/throat with water; seek medical attention if coughing or respiratory discomfort persists.
  - Eye Contact: Flush eyes thoroughly with lukewarm running water for at least 10 to 15 minutes while holding eyelids open (avoid rubbing eyes to prevent mechanical corneal abrasion); consult an ophthalmologist if redness persists.
  - Skin Contact: Brush off dry powder and wash skin with mild soap and water.
  - Ingestion: Non-toxic in normal quantities; rinse mouth and drink 1 to 2 glasses of water if large amounts of dry powder are swallowed accidentally.
- Environmental Precautions:
  - TCP Tricalcium Phosphate is a natural-type calcium-phosphorus mineral that is non-hazardous to soil and activated sludge; however, prevent large bulk spills from entering natural lakes or rivers directly, as high phosphate loads can contribute to aquatic algal nutrient enrichment (eutrophication). Sweep or vacuum up dry spills for reuse or disposal in accordance with local regulations.

WHAT SHOULD BE CONSIDERED WHEN PURCHASING TCP TRICALCIUM PHOSPHATE?

When purchasing TCP Tricalcium Phosphate for food and beverage formulations, verify that the grade is certified to EU Commission Regulation (EU) No 231/2012 (E341(iii)) and Food Chemicals Codex (FCC) with Fluoride <= 50 ppm, Lead <= 1.0 ppm (or <= 0.5 ppm for infant nutrition), and Arsenic <= 1.0 ppm, rather than industrial or feed-grade TCP.

Buyers sourcing TCP Tricalcium Phosphate must specify the exact physical particle-size and bulk-density grade required for their process: Micronized Porous Powder TCP Tricalcium Phosphate (d50 = 3 to 10 microns, bulk density 0.20–0.35 g/cm3) for spice/salt anticaking, Ultra-Fine Micronized TCP Tricalcium Phosphate (d50 <= 2.5 to 4.0 microns) for UHT plant milks, Spherical Direct-Compression Granular TCP Tricalcium Phosphate (d50 = 150–220 microns, bulk density 0.60–0.80 g/cm3) for tablet presses, or Sub-Micron Suspension Grade TCP Tricalcium Phosphate (d50 = 0.4–1.2 microns) for EPS/PMMA polymerization.

For UHT soy, oat, and almond milk manufacturers, check the 10% slurry pH (target 6.8 to 8.0) and soluble calcium ion level of TCP Tricalcium Phosphate on the Certificate of Analysis to ensure zero protein curdling during 140 °C UHT sterilization.

Pharmaceutical and oral-care formulators purchasing TCP Tricalcium Phosphate should confirm USP-NF / Ph. Eur. monograph compliance, microbial limits (TAMC < 100–1,000 CFU/g, absence of E. coli and Salmonella), and whether apatitic hydroxyapatite TCP (CAS 1306-06-5) or calcined anhydrous beta-TCP (CAS 7758-87-4) is specified in their product dossier.

Finally, inspect packaging integrity upon receipt—ensuring that multi-wall bags or big bags of TCP Tricalcium Phosphate have intact heat-sealed inner polyethylene moisture liners so the porous powder retains 100% of its moisture-adsorbing anticaking capacity.

TCP TRICALCIUM PHOSPHATE SUPPLY FROM ATAMAN KİMYA

 Ataman Kimya supplies a complete portfolio of Food Grade (E341(iii) / FCC), Pharmaceutical Direct-Compression & Powder Grade (USP-NF / Ph. Eur.), Oral-Care & Cosmetic Grade (INCI: TRICALCIUM PHOSPHATE), Polystyrene Suspension-Polymerization Grade, and Feed Grade TCP Tricalcium Phosphate (CAS 7758-87-4 / 1306-06-5, EC 231-840-8 / 215-145-7) directly from warehouse stock in Türkiye.
 Every lot of TCP Tricalcium Phosphate delivered by Ataman Kimya is supported by a comprehensive batch Certificate of Analysis (CoA) verifying elemental Calcium assay (34.0%–40.0%), Loss on Ignition, pH, bulk density, laser-diffraction particle size (d50 / d90 / 325-mesh pass), fluoride, and heavy metals (Pb, As, Cd, Hg), along with SDS, Halal, Kosher, Non-GMO, and Allergen-Free certificates.
 For food, beverage, and spice manufacturers, Ataman Kimya provides both high-surface-area anticaking TCP Tricalcium Phosphate (including F-6000 micronized grades) and ultra-fine beverage fortification TCP Tricalcium Phosphate alongside complementary hydrocolloids (xanthan gum, gellan gum, carrageenan, guar gum, CMC) and food phosphates (DCP, MCP, SAPP, STPP, SHMP).
 For pharmaceutical, cosmetic, and polymer plants, Ataman Kimya supplies direct-compression granular TCP Tricalcium Phosphate, cosmetic mattifying grades, and sub-micron EPS suspension-stabilizer TCP Tricalcium Phosphate in 25 kg lined bags, 25 kg fiber drums, and 1,000 kg Big Bags with fast nationwide and export logistics.
 Ataman Kimya's technical specialists assist R&D teams in selecting the optimal particle size, bulk density, and polymorphic grade of TCP Tricalcium Phosphate and provide laboratory evaluation samples upon request.

FREQUENTLY ASKED QUESTIONS ABOUT TCP TRICALCIUM PHOSPHATE

 Why does commercial TCP Tricalcium Phosphate carry both CAS 7758-87-4 and CAS 1306-06-5 / 12167-74-7?
Stoichiometric anhydrous tricalcium bis(orthophosphate) has the formula Ca3(PO4)2 and CAS 7758-87-4 (obtained by calcining above 850 °C to form beta-TCP or alpha-TCP). However, when TCP Tricalcium Phosphate is produced by aqueous precipitation from phosphoric acid and lime (the standard method for Food E341(iii) and USP/Ph. Eur. grades), it crystallizes in the calcium hydroxyapatite structure Ca5(PO4)3(OH) / Ca10(PO4)6(OH)2 (CAS 1306-06-5 / 12167-74-7). Both FCC/E341(iii) and USP-NF recognize both formulas under the official name Tribasic Calcium Phosphate / Tricalcium Phosphate with a Calcium specification of 34.0% to 40.0% w/w.

 How much elemental calcium and phosphorus does TCP Tricalcium Phosphate contain?
Commercial Food and Pharmaceutical Grade TCP Tricalcium Phosphate contains 34.0% to 40.0% w/w elemental Calcium (typically 37.5% to 39.0% Ca) and approximately 19.5% to 20.5% w/w elemental Phosphorus, giving a physiological Ca:P weight ratio of nearly 2:1—making it the most calcium-dense phosphate salt available.

 How does TCP Tricalcium Phosphate prevent caking in table salt, spice powders, and instant drink mixes?
Micronized anticaking TCP Tricalcium Phosphate consists of porous 3 to 10 micron micro-sponge particles that coat the surface of larger host salt, sugar, or spice crystals. These fine TCP Tricalcium Phosphate particles act both as physical ball-bearing spacers that reduce inter-particle friction and as capillary moisture/oil traps that absorb ambient humidity before liquid bridges can form and cement the host crystals together.

 Why is TCP Tricalcium Phosphate preferred over Calcium Carbonate or Calcium Chloride in UHT plant-based milks?
Soluble calcium salts (like calcium chloride or calcium lactate) release free Ca2+ ions that crosslink and curdle soy, oat, or pea proteins during 140 °C UHT sterilization, while Calcium Carbonate has an alkaline pH (~9.5) that imparts a chalky, soapy off-taste. Ultra-fine micronized TCP Tricalcium Phosphate (d50 ~ 2.5 microns) is practically insoluble at neutral pH (6.8 to 7.2), so it causes zero protein coagulation during UHT processing and delivers a clean, neutral dairy-like mouthfeel.

 Is TCP Tricalcium Phosphate absorbed well by the human body even though it is insoluble in neutral water?
Yes! Although TCP Tricalcium Phosphate is practically insoluble in neutral water (pH 7.0) inside a beverage carton or tablet, as soon as it reaches the human stomach, gastric hydrochloric acid (pH 1.5 to 2.5) rapidly dissolves TCP Tricalcium Phosphate into soluble calcium ions (Ca2+) and dihydrogen phosphate ions (H2PO4-) for efficient absorption in the small intestine.

 What is the difference between Powder Grade and Direct-Compression (DC) Granular Grade TCP Tricalcium Phosphate?
Powder Grade TCP Tricalcium Phosphate has a fine particle size (d50 = 2 to 15 microns) and low bulk density (0.20 to 0.35 g/cm3), ideal for anticaking, beverage suspension, and wet granulation, but too fluffy to flow into high-speed tablet press dies directly. Direct-Compression (DC) Grade TCP Tricalcium Phosphate is spray-dried or roller-compacted into dense, spherical free-flowing granules (d50 = 150 to 220 microns, bulk density 0.60 to 0.80 g/cm3) that feed directly into rotary tablet presses and compress by brittle fracture into hard, low-friability tablets.

 What is the difference between beta-TCP and alpha-TCP in biomedical bone grafts?
Both beta-TCP and alpha-TCP have the exact stoichiometric formula Ca3(PO4)2 (CAS 7758-87-4), but beta-TCP is the rhombohedral phase formed by calcining at 850 to 1,100 °C (used as porous osteoconductive bone-graft granules that resorb over 6 to 18 months), whereas alpha-TCP is the higher-temperature monoclinic phase formed above 1,125 °C (which is more reactive in water and hydrates in situ at 37 °C to form self-setting calcium phosphate bone cements).

 Why is TCP Tricalcium Phosphate used in Expandable Polystyrene (EPS) and PMMA bead polymerization?
In aqueous suspension polymerization of styrene or methyl methacrylate, sub-micron TCP Tricalcium Phosphate (0.15% to 0.60% w/w on monomer) adsorbs at the monomer-water interface as a solid Pickering stabilizer, preventing sticky polymerizing droplets from coalescing into a solid block and washing off cleanly with dilute hydrochloric acid at the end of the batch.

 Is Food-Grade TCP Tricalcium Phosphate (E341(iii)) vegan, Halal, and Kosher?
Yes. Modern commercial Food and Pharmaceutical Grade TCP Tricalcium Phosphate supplied by Ataman Kimya is 100% synthetic mineral-derived (manufactured from purified mineral phosphoric acid and mineral calcium hydroxide—never from animal bone ash), making it 100% Vegan, Vegetarian, Halal, Kosher, Non-GMO, and Allergen-Free.

 What is the shelf life and recommended storage condition for TCP Tricalcium Phosphate?
When stored in its original unopened PE-lined bags or drums in a cool, dry indoor warehouse away from moisture and strong odors, TCP Tricalcium Phosphate has a shelf life of at least 24 to 36 months.

TCP TRICALCIUM PHOSPHATE – TECHNICAL SUMMARY

TCP Tricalcium Phosphate (Tricalcium phosphate, Tribasic calcium phosphate, Calcium orthophosphate, Calcium hydroxyapatite, E341(iii), CAS 7758-87-4 / 1306-06-5, EC 231-840-8 / 215-145-7, Ca3(PO4)2 / Ca5(PO4)3(OH)) is the premier multifunctional inorganic calcium-phosphorus salt combining high elemental mineral density (34.0% to 40.0% w/w Calcium and ~20.0% w/w Phosphorus), porous micro-sponge anticaking and oil-carrying capacity, neutral pH (6.8 to 8.5), near-zero neutral water solubility (~0.002 g/100 mL) paired with complete gastric bioavailability, brittle-fracture direct-compression tableting behavior, biomimetic dental enamel remineralization, and Pickering interfacial stabilization. Whether formulating lump-free spice and beverage powders, UHT plant-based milks, high-speed pharmaceutical tablets, remineralizing toothpastes, mattifying cosmetics, resorbable bone grafts, or expandable polystyrene (EPS) beads, Ataman Kimya delivers certified Food (E341(iii)/FCC), Pharma (USP/Ph. Eur.), Cosmetic, Polymerization, and Feed grades of TCP Tricalcium Phosphate tailored to exact particle-size and purity specifications. For technical data sheets, samples, or bulk quotations for TCP Tricalcium Phosphate, contact Ataman Kimya:

Ataman Chemicals
Phone: +90 216 577 10 10
Email: info@atamankimya.com