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Tetrapotassium Pyrophosphate (TKPP) is an inorganic potassium phosphate salt widely used as a builder, dispersing agent, sequestrant, buffering agent, chelating agent, and emulsifying stabilizer in detergents, food processing, water treatment, ceramics, and industrial formulations.
Tetrapotassium Pyrophosphate (TKPP) improves cleaning efficiency by softening water, dispersing soils, and enhancing the performance of surfactants.
Tetrapotassium Pyrophosphate (TKPP) exhibits strong chelation capacity for metal ions such as calcium and magnesium, preventing scale formation and improving formulation stability.
CAS Number: 7320-34-5
EC Number: 230-785-7
Molecular Formula: K₄P₂O₇
Molecular Weight: 330.34 g/mol
Synonyms: Tetrapotassium Pyrophosphate, TKPP, Potassium Pyrophosphate, Diphosphoric Acid Tetrapotassium Salt, Potassium Diphosphate, E450(iii), Pyrophosphate Salt, Tetrapotassium Pyrophosphate, TKPP, Potassium Pyrophosphate, Dipotassium Pyrophosphate (technical reference), Potassium Diphosphate, Tetrapotassium Diphosphate, Tetrapotassium Phosphate, Tetrapotassium Pyro-Phosphate, Potassium Pyro-Phosphate, Pyrophosphoric Acid Tetrapotassium Salt, Pyrophosphate Potassium Salt, K₄P₂O₇, Tetrapotassium Pyrophosphate Anhydrous, Tetrapotassium Pyrophosphate Hydrate, Anhydrous TKPP, Hydrated TKPP, Technical Grade TKPP, Industrial Grade TKPP, Food Grade TKPP, FCC Grade Tetrapotassium Pyrophosphate, High Purity TKPP, Pure TKPP, Extra-Pure TKPP, Potassium Polyphosphate (TKPP), Potassium Phosphate Pyro Grade, Alkali Metal Pyrophosphate (Potassium), Alkaline Pyrophosphate Salt, TKPP Sequestrant, TKPP Chelating Agent, TKPP Buffering Agent, TKPP Emulsifying Agent, TKPP Dispersing Agent, TKPP Water Softener, TKPP Hardness Control Agent, TKPP Detergent Builder, TKPP Detergent Additive
APPLICATIONS
Tetrapotassium Pyrophosphate (TKPP) is used as a builder in detergents.
Tetrapotassium Pyrophosphate (TKPP) improves surface wetting and soil removal.
Tetrapotassium Pyrophosphate (TKPP) enhances surfactant efficiency in alkaline cleaners.
Tetrapotassium Pyrophosphate (TKPP) is used in automatic dishwasher detergents.
Tetrapotassium Pyrophosphate (TKPP) prevents scale build-up on dishes and machine parts.
Tetrapotassium Pyrophosphate (TKPP) provides anti-spotting performance.
Tetrapotassium Pyrophosphate (TKPP) is used in industrial degreasers.
Tetrapotassium Pyrophosphate (TKPP) stabilizes heavy-duty cleaning formulations.
Tetrapotassium Pyrophosphate (TKPP) disperses oily soils effectively.
Tetrapotassium Pyrophosphate (TKPP) is employed in food processing.
Tetrapotassium Pyrophosphate (TKPP) improves meat texture and water retention.
Tetrapotassium Pyrophosphate (TKPP) functions as a sequestrant in canned seafood.
Tetrapotassium Pyrophosphate (TKPP) is used as a buffering agent in food formulations.
Tetrapotassium Pyrophosphate (TKPP) regulates pH for stability and quality.
Tetrapotassium Pyrophosphate (TKPP) enhances gel formation in processed foods.
Tetrapotassium Pyrophosphate (TKPP) is applied in ceramics and metallurgy.
Tetrapotassium Pyrophosphate (TKPP) acts as a dispersant for ceramic slurries.
Tetrapotassium Pyrophosphate (TKPP) improves suspension stability.
Tetrapotassium Pyrophosphate (TKPP) is used in water treatment systems.
Tetrapotassium Pyrophosphate (TKPP) binds hardness ions to prevent scale.
Tetrapotassium Pyrophosphate (TKPP) supports corrosion control formulations.
Tetrapotassium Pyrophosphate (TKPP) is used in textile processing.
Tetrapotassium Pyrophosphate (TKPP) enhances dye dispersion.
Tetrapotassium Pyrophosphate (TKPP) improves penetration and levelness.
Tetrapotassium Pyrophosphate (TKPP) is incorporated into personal care products.
Tetrapotassium Pyrophosphate (TKPP) stabilizes toothpaste formulations.
Tetrapotassium Pyrophosphate (TKPP) acts as a tartar control agent.
Tetrapotassium Pyrophosphate (TKPP) is used as a sequestrant in detergent formulations.
Tetrapotassium Pyrophosphate (TKPP) binds metal ions that interfere with cleaning.
Tetrapotassium Pyrophosphate (TKPP) boosts detergent performance in hard water.
Tetrapotassium Pyrophosphate (TKPP) is used in industrial cleaners.
Tetrapotassium Pyrophosphate (TKPP) enhances grease removal in alkaline cleaning systems.
Tetrapotassium Pyrophosphate (TKPP) improves soil suspension in cleaning solutions.
Tetrapotassium Pyrophosphate (TKPP) is used in dishwashing detergents.
Tetrapotassium Pyrophosphate (TKPP) prevents scale formation inside dishwashers.
Tetrapotassium Pyrophosphate (TKPP) reduces spotting on glassware and utensils.
Tetrapotassium Pyrophosphate (TKPP) is used in metal cleaning operations.
Tetrapotassium Pyrophosphate (TKPP) disperses oxides and rust residues.
Tetrapotassium Pyrophosphate (TKPP) promotes wetting of metal surfaces during cleaning.
Tetrapotassium Pyrophosphate (TKPP) is used in water treatment.
Tetrapotassium Pyrophosphate (TKPP) prevents precipitation of calcium and magnesium salts.
Tetrapotassium Pyrophosphate (TKPP) improves stability of water systems with high mineral content.
Tetrapotassium Pyrophosphate (TKPP) is used in ceramic processing.
Tetrapotassium Pyrophosphate (TKPP) disperses clay particles in ceramic slips.
Tetrapotassium Pyrophosphate (TKPP) enhances fluidity for improved forming and casting.
Tetrapotassium Pyrophosphate (TKPP) is used in food processing.
Tetrapotassium Pyrophosphate (TKPP) adjusts pH in processed foods and beverages.
Tetrapotassium Pyrophosphate (TKPP) stabilizes proteins in meat and seafood applications.
Tetrapotassium Pyrophosphate (TKPP) is used in dairy products.
Tetrapotassium Pyrophosphate (TKPP) prevents protein coagulation in processed cheese.
Tetrapotassium Pyrophosphate (TKPP) improves meltability and texture in cheese slices.
Tetrapotassium Pyrophosphate (TKPP) is used in oilfield drilling fluids.
Tetrapotassium Pyrophosphate (TKPP) disperses clays in drilling mud formulations.
Tetrapotassium Pyrophosphate (TKPP) improves rheology of high-solid drilling systems.
Tetrapotassium Pyrophosphate (TKPP) is used in fertilizer production.
Tetrapotassium Pyrophosphate (TKPP) provides a source of potassium and phosphorus.
Tetrapotassium Pyrophosphate (TKPP) enhances nutrient stability in liquid fertilizers.
Tetrapotassium Pyrophosphate (TKPP) is used in textile processing.
Tetrapotassium Pyrophosphate (TKPP) improves scouring efficiency in fabric preparation.
Tetrapotassium Pyrophosphate (TKPP) enhances dye penetration in textile finishing.
Tetrapotassium Pyrophosphate (TKPP) is used in brewing applications.
Tetrapotassium Pyrophosphate (TKPP) controls metal ions that affect fermentation quality.
Tetrapotassium Pyrophosphate (TKPP) stabilizes flavor and color in finished beverages.
Tetrapotassium Pyrophosphate (TKPP) is used in cosmetic products.
Tetrapotassium Pyrophosphate (TKPP) acts as a chelating agent in skincare and haircare formulations.
Tetrapotassium Pyrophosphate (TKPP) improves stability of emulsions containing metal-sensitive ingredients.
Tetrapotassium Pyrophosphate (TKPP) is used in pigment dispersion.
Tetrapotassium Pyrophosphate (TKPP) prevents pigment agglomeration in paints and inks.
Tetrapotassium Pyrophosphate (TKPP) enhances color uniformity in waterborne coatings.
Tetrapotassium Pyrophosphate (TKPP) is used in adhesive formulations.
Tetrapotassium Pyrophosphate (TKPP) controls viscosity in water-based adhesives.
Tetrapotassium Pyrophosphate (TKPP) improves bonding strength in starch-based adhesives.
Tetrapotassium Pyrophosphate (TKPP) is used in electroplating baths.
Tetrapotassium Pyrophosphate (TKPP) stabilizes metal ions during plating.
Tetrapotassium Pyrophosphate (TKPP) enhances brightness and uniformity in metal coatings.
Tetrapotassium Pyrophosphate (TKPP) is compatible with surfactants, builders, and other pyrophosphate salts.
Tetrapotassium Pyrophosphate (TKPP) maintains its stability under normal storage conditions.
Tetrapotassium Pyrophosphate (TKPP) resists hydrolysis better than many other phosphate salts.
Tetrapotassium Pyrophosphate (TKPP) must be stored in dry, sealed containers to prevent caking.
Tetrapotassium Pyrophosphate (TKPP) is widely used across food, detergent, ceramic, cosmetic, and water treatment industries.
Tetrapotassium Pyrophosphate (TKPP) is valued for its chelating, dispersing, stabilizing, and buffering properties.
DESCRIPTION
Tetrapotassium Pyrophosphate (TKPP) appears as a white crystalline or granular powder.
Tetrapotassium Pyrophosphate (TKPP) is odorless and highly soluble in water.
Tetrapotassium Pyrophosphate (TKPP) forms alkaline solutions with strong buffering activity.
Tetrapotassium Pyrophosphate (TKPP) is produced by thermal condensation of potassium dihydrogen phosphate.
Tetrapotassium Pyrophosphate (TKPP) contains the pyrophosphate anion (P₂O₇⁴⁻), which confers strong chelating ability.
Tetrapotassium Pyrophosphate (TKPP) binds polyvalent metal ions effectively.
Tetrapotassium Pyrophosphate (TKPP) disperses particulates in detergent and ceramic systems.
Tetrapotassium Pyrophosphate (TKPP) prevents settling and stabilizes suspensions.
Tetrapotassium Pyrophosphate (TKPP) enhances clarity in industrial formulations.
Tetrapotassium Pyrophosphate (TKPP) maintains alkaline pH in cleaning systems.
Tetrapotassium Pyrophosphate (TKPP) improves cleaning power under hard-water conditions.
Tetrapotassium Pyrophosphate (TKPP) prevents soap precipitation.
Tetrapotassium Pyrophosphate (TKPP) is food-grade in many formulations under E450(iii).
Tetrapotassium Pyrophosphate (TKPP) optimizes texture, hydration, and color retention in meat and seafood.
Tetrapotassium Pyrophosphate (TKPP) helps proteins bind moisture and enhance yield.
Tetrapotassium Pyrophosphate (TKPP) is stable under normal storage conditions.
Tetrapotassium Pyrophosphate (TKPP) hydrolyzes slowly in water to orthophosphates.
Tetrapotassium Pyrophosphate (TKPP) should be protected from moisture to avoid caking.
PROPERTIES
Chemical Formula: K₄P₂O₇
Molecular Weight: 330.34 g/mol
Appearance: White crystalline or granular powder
Odor: Odorless
Density: ~2.33 g/cm³
Melting Point: ~1,100°C (decomposes)
Solubility in Water: Highly soluble (187 g/L at 25°C)
pH (1% solution): ~10.0–10.5
Hygroscopicity: Moderate; absorbs moisture from air
Stability: Stable under dry conditions; slowly hydrolyzes in solution
Reactivity: Reacts with acids to form orthophosphates
Storage Temperature: Store below 30°C in dry, sealed containers
Heat Stability: Excellent thermal stability for high-temperature processes
Ionic Strength: High due to tetra-potassium content
Chelation Strength: Strong affinity for Ca²⁺ and Mg²⁺ ions
FIRST AID
Inhalation:
Move to fresh air.
Seek medical help if coughing or irritation persists.
Skin Contact:
Wash with water and mild soap.
Seek medical attention if irritation develops.
Eye Contact:
Rinse immediately with water for at least 15 minutes.
Seek medical attention if redness or discomfort continues.
Ingestion:
Rinse mouth and drink water.
Seek medical attention if large amounts are ingested.
Note to Physicians:
Alkaline salt; treat for irritation and electrolyte imbalance if needed.
HANDLING AND STORAGE
Handling:
Avoid dust formation.
Use gloves, goggles, and dust masks when handling large quantities.
Ensure good ventilation.
Avoidance:
Prevent contact with strong acids.
Avoid exposure to moisture.
Spill Procedures:
Sweep or vacuum with minimal dust generation.
Dispose of according to local regulations.
Storage:
Store in a cool, dry place.
Keep container tightly sealed.
Protect from humidity to prevent caking and hydrolysis.
