PRODUCTS

DISODIUM PHOSPHATE ANHYDROUS

Disodium Phosphate Anhydrous is used in home care applications, particularly in metal cleaners.
Disodium Phosphate Anhydrous is used in potable water applications, textile manufacturing, and water treatment processes.
Disodium Phosphate Anhydrous is widely used in food as an acidity regulator, emulsifier, stabilizer, and moisture retainer.

CAS Number: 7558-79-4 (anhydrous form)
EC Number: 231-448-7
MDL Number: MFCD00003496
Molecular Formula: Na2HPO4 / HO4PNa2 / HNa2O4P
Molar mass: ~ 141.96 g/mol (for the anhydrous form)

SYNONYMS:
Dibasic sodium phosphate, Disodium hydrogen phosphate, Disodium orthophosphate (secondary), Sodium phosphate dibasic, Sodium hydrogen phosphate (dibasic), DSP, Disodium hydrogen phosphate, Acetest, Dibasic sodium phosphate, Disodium hydrogen orthophosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium phosphate dibasic, 7558-79-4, Sodium phosphate dibasic, Disodium hydrogen phosphate, Disodium hydrogenorthophosphate, DISODIUM PHOSPHATE, Sodium phosphate, dibasic, Dibasic sodium phosphate, Acetest, disodium hydrogenphosphate, Disodium acid phosphate, Soda phosphate, Disodium orthophosphate, Exsiccated sodium phosphate, Phosphoric acid, disodium salt, Sodium hydrogen phosphate, Phosphate of soda, Sodium monohydrogen phosphate, FEMA No. 2398, secondary Sodium phosphate, Natriumphosphat, Disodium acid orthophosphate, Caswell No. 778, Disodium hydrophosphate, Fleet enema, Disodium phosphate, anhydrous, Disodium phosphoric acid, Disodium monohydrogen phosphate, Na2HPO4, FEMA Number 2398, Natriumphosphat [German], Disodium hydrogen phosphate, anhydrous, Hydrogen disodium phosphate, Sodium phosphate (NaHPO4), Sodium phosphate, exsiccated, SODIUM PHOSPHATE, DIBASIC, ANHYDROUS, Sodium phosphate, dibasic (anhydrous), CCRIS 5931, HSDB 376, Sodium orthophosphate, secondary, Sodium acid phosphate, anhydrous, Sodium Phosphate dibasic anhydrous, SODIUM PHOSPHATE, DIBASIC ANHYDROUS, EINECS 231-448-7, Phosphoric acid, sodium salt (1:2), Disodium hydrogen monophosphate, EPA Pesticide Chemical Code 076403, Sodium monohydrogen phosphate (2:1:1), 22ADO53M6F, Dibasic sodium phosphate anhydrous, dibasic sodium phosphate, anhydrous, phosphoric acid, disodium salt, anhydrous, DTXSID1026039, DISODIUM PHOSPHATE [HSDB], Sodium phosphate,dibasic,anhydrous, EC 231-448-7, SODIUM PHOSPHATE, DIBASIC [MI], DISODIUM PHOSPHATE [EP MONOGRAPH], SODIUM PHOSPHATE DIBASIC [WHO-DD], SODIUM PHOSPHATE, DIBASIC, ANHYDROUS [II], SODIUM PHOSPHATE,DIBASIC,ANHYDROUS [VANDF], NATRIUMPHOSPHAT (GERMAN), SODIUM PHOSPHATE, DIBASIC ANHYDROUS [ORANGE BOOK], SODIUM PHOSPHATE, DIBASIC, ANHYDROUS [ORANGE BOOK], OSMOPREP COMPONENT SODIUM PHOSPHATE, DIBASIC ANHYDROUS, VISICOL COMPONENT SODIUM PHOSPHATE, DIBASIC ANHYDROUS, SODIUM PHOSPHATE, (DIBASIC), SODIUM PHOSPHATE, [DIBASIC], SODIUM PHOSPHATE, DIBASIC (II), SODIUM PHOSPHATE, DIBASIC [II], DISODIUM PHOSPHATE (EP MONOGRAPH), DIBASIC SODIUM PHOSPHATE (USP MONOGRAPH), DIBASIC SODIUM PHOSPHATE [USP MONOGRAPH], SODIUM PHOSPHATE, DIBASIC (USP IMPURITY), SODIUM PHOSPHATE, DIBASIC [USP IMPURITY], SODIUM PHOSPHATE, DIBASIC, ANHYDROUS (II), RefChem:887805, NAT. PHOS., FEMA NUMBER 2398., SODIUM PHOSPHATE,DIBASIC, DTXCID106039, DISODIUM PHOSPHATE [INCI], EXCICCATED SODIUM PHOSPHATE, SODIUM ORTHOPHOSPHATE DIBASIC, SODIUM PHOSPHATE (NA2HPO4), DISODIUM PHOSPHATE (NA2HPO4), MONOHYDROGEN DISODIUM PHOSPHATE, ANHYDROUS SODIUM ACID PHOSPHATE, Sodium phosphate, dibasic, unspecified, SODIUM PHOSPHATE,DIBASIC [VANDF], USEPA/OPP Pesticide Code: 076403, DISODIUM ORTHOPHOSPHATE DODECAHYDRATE, HYDROGEN SODIUM PHOSPHATE (HNA2PO4), Sodium phosphate, dibasic, unspecified form, SODIUM PHOSPHATE, DIBASIC [ORANGE BOOK], DISODIUM HYDROGEN ORTHOPHOSPHATE (NA2HPO4), DISODIUM MONOHYDROGEN PHOSPHATE DODECAHYDRATE, SODIUM PHOSPHATE, DIBASIC ANHYDROUS COMPONENT OF VISICOL, SODIUM PHOSPHATE, DIBASIC ANHYDROUS COMPONENT OF OSMOPREP, Disodium monophosphate, Secondary sodium phosphate, 231-448-7, 692-045-3, 10039-32-4, 7558-79-4, 10140-65-5, GR686LBA74, SODIUM PHOSPHATE, DIBASIC HEPTAHYDRATE, disodium;hydrogen phosphate, Sodium hydrogenphosphate, sec-Sodium phosphate, MFCD00003496, DSP, disodium hydrogen phosphate anhydrous, INS NO.339(II), CHEBI:34683, INS-339(II), E-339(II), Sodium phosphate dibasic, anhydrous, HNa2O4P, UNII-22ADO53M6F, Disodium hydrogen orthophosphate, Disodium phospahte, Sodiumphosphatedibasic, Disodiumhydrogenphosphate, sodium hydrogen-phosphate, disodium hydrogen-phosphate, Disodium phosphate anhydrous, Sorensen's sodium phosphate, di-sodium hydrogen phosphate, di-Sodium hydrogen phosphate anhydrous, USP grade, phosphoric acid disodium salt, SCHEMBL11660, sodium hydrogen orthophosphate, Water Supply QC Check Sample: o-Phosphate Nutrients, orb1737455, SCHEMBL4269482, SODIUM PHOSPHATE [FHFI], BCP13559, Sodium hydrogen phosphate, anhydrous, Sodium phosphate dibasic, ACS grade, Disodium Hydrogen Phosphate Submicron, AKOS015902440, AKOS015950661, CCG-266159, DB14502, di-Sodium hydrogen phosphate, anhydrous, FD30639, FS45392, Sodium phosphate dibasic, ACS/HPLC grade, Sodium phosphate dibasic, biochemical grade, NS00082436, Sodium phosphate dibasic, Trace metals grade, Sodium phosphate dibasic, for molecular biology, F095370, F545127, Q418448, Disodium hydrogen orthophosphate, Sodium hydrogen phosphate, Sodium Hydrogen Phosphate, Sodium Phosphate, secondary, sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate, Sodium phosphate dibasic, Na2HPO4, DSP, Disodium Hydrogenorthophosphate, Anhydrous Dibasic Sodium Phosphate, Anhydrous Disodium Hydrogen Phosphate, Dibasic Sodium Phosphate, Dibasic Sodium Phosphate Anhydrous, Disodium Acid Orthophosphate, Disodium Hydrogen Monophosphate, Disodium Hydrogen Phosphate, Disodium Monohydrogen Phosphate, Disodium Orthophosphate, Disodium Phosphate, Na2HPO4, Sodium Phosphate Dibasic, Sodium Phosphate Dibasic Anhydrous, Sodium hydrogenphosphate, Disodium phosphate, Disodium hydrogen phosphate, Sodium phosphate dibasic, sec-Sodium phosphate, di-Sodium hydrogen phosphate, Sodium monohydrogen phosphate, Disodium hydrogen phosphate, Sodium phosphate dibasic, disodium hydrogen phosphate, disodium phosphate, disodium hydrogenorthophosphate, sodium phosphate dibasic, dibasic sodium phosphate, acetest, soda phosphate, disodium orthophosphate, sodium hydrogen phosphate, phosphoric acid, disodium salt, Sodium phosphate, dibasic, Acetest, DSP, Dibasic sodium phosphate, Disodium acid orthophosphate, Disodium acid phosphate, Disodium hydrogen phosphate, Disodium hydrogen phosphate, anhydrous, Disodium hydrophosphate, Disodium monohydrogen phosphate, Disodium orthophosphate, Disodium phosphate, anhydrous, Disodium phosphoric acid, Exsiccated sodium phosphate, Fleet enema, Natriumphosphat [German], Phosphate of soda, Phosphoric acid, disodium salt, Soda phosphate, Sodium acid phosphate, anhydrous, Sodium hydrogen phosphate, Sodium monohydrogen phosphate, Sodium monohydrogen phosphate (2:1:1), Sodium orthophosphate, secondary, Sodium phosphate, Sodium phosphate (NaH2PO4), Sodium phosphate, dibasic (anhydrous), Sodium phosphate, exsiccated, secondary Sodium phosphate, [ChemIDplus], sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate, Sodium phosphate dibasic, Sodium phosphate dibasic anhydrous, Disodium phosphate anhydrous, Disodium phosphate, anhydrous, disodium hydrogen phosphate, disodium phosphate (food grade), disodium phosphate anhydrous, disodium phosphate anhydrous FCC granular, phosphoric acid disodium salt, sodium monohydrogen phosphate (2:1:1), sodium phosphate (NaHPO4), sodium phosphate dibasic, sodium phosphate dibasic anhydrous ACS, sodium phosphate dibasic anhydrous powder FCC, sodium phosphate dibasic anhydrous ultra pure, sodium phosphate dibasic anhydrous USP, sodium phosphate dibasic dried powder USP/NF, sodium phosphate, di

Disodium Phosphate Anhydrous (Na₂HPO₄), a high-quality, white crystalline compound with a wide range of industrial applications. Known for its purity, solubility, and versatility, Di Sodium Phosphate Anhydrous plays a crucial role in pharmaceuticals, water treatment, and food processing industries.

Disodium Phosphate Anhydrous, or disodium hydrogen phosphate, or sodium phosphate dibasic, is an inorganic compound with the chemical formula Na2HPO4.
Disodium Phosphate Anhydrous is one of several sodium phosphates.

The salt is known in anhydrous form as well as hydrates Na2HPO4·nH2O, where n is 2, 7, 8, and 12.
The pH of Disodium Phosphate Anhydrous is between 8.0 and 11.0, meaning it is moderately basic:
HPO2−4 + H2O ⇌ H2PO−4 + OH−

Disodium Phosphate Anhydrous is a small molecule drug with a maximum clinical trial phase of IV (across all indications) that was first approved in 1957 and is indicated for constipation and has 2 investigational indications.
Disodium Phosphate Anhydrous is generally immediately available in most volumes.

Disodium Phosphate Anhydrous is a compound with a wide range of applications.
Disodium Phosphate Anhydrous appears as a colorless to white crystalline solid.
Disodium Phosphate Anhydrous is soluble in water.

Disodium Phosphate Anhydrous, presented as white, free-flowing, dense granules.
Disodium Phosphate Anhydrous functions as a buffering agent and chelator.
Disodium Phosphate Anhydrous is the inorganic compound with the formula Na2HPO4.

Disodium Phosphate Anhydrous is one of several sodium phosphates.
Disodium Phosphate Anhydrous is a compound that does not contain crystalline water molecules.
Disodium Phosphate Anhydrous appears as a white crystalline powder, is easily soluble, and its aqueous solution is alkaline.

One substance that doesn’t contain crystalline water molecules is disodium phosphate anhydrous.
Disodium Phosphate Anhydrous is freely soluble, has an alkaline aqueous solution, and takes the form of a white crystalline powder.
Disodium Phosphate Anhydrous is frequently used in food as an emulsifier, moisture retainer, stabilizer, and regulator of acidity.

Disodium phosphate anhydrous is mainly prepared in China through neutralization and dehydration.
The neutralization method is to react phosphoric acid with sodium carbonate or sodium hydroxide to produce disodium hydrogen phosphate, which is then evaporated, concentrated, and dried to obtain an anhydrous product.

The dehydration method is to heat and dehydrate monohydrate or dihydrate disodium hydrogen phosphate at high temperature to directly obtain disodium phosphate anhydrous.
At present, the dehydration method is the mainstream method for preparing anhydrous disodium hydrogen phosphate in China.

Because the dehydration method is simple in process and low in cost, the existing aqueous disodium hydrogen phosphate raw materials can be used to obtain an anhydrous product by heating and dehydrating, so Disodium Phosphate Anhydrous is very suitable for large-scale production.
Disodium Phosphate Anhydrous BP EP USP CAS 7558-79-4 is an inorganic sodium salt of phosphoric acid, with the chemical formula Na2HPO4.
Disodium Phosphate Anhydrous also has other names in the industry, including Disodium hydrogen phosphate, Disodium monohydrogen phosphate,

Disodium phosphate, Sodium hydrogenphosphate, and Sodium phosphate dibasic.
Disodium Phosphate Anhydrous's CAS number is 7558-79-4.
Disodium phosphate anhydrous is a naturally occurring compound and is found in many soils, rocks, and minerals.

Disodium Phosphate Anhydrous is often mined from deposits in the earth and is commonly used in the production of fertilizers.
Disodium Phosphate Anhydrous is also synthesized in a laboratory, where it is produced by reacting phosphoric acid with sodium hydroxide.
Disodium Phosphate Anhydrous should be stored in airtight containers away from moisture to prevent clumping.

Disodium phosphate anhydrous is not considered to be a hazardous substance.
Disodium Phosphate Anhydrous should be transported in accordance with local regulations.
Disodium phosphate anhydrous is a versatile compound that finds many applications in various industries.

When working with disodium phosphate anhydrous, it is important to follow good handling practices to ensure that it is transported and stored safely to prevent any accidents.
Also known as Disodium Phosphate Anhydrous, Disodium Phosphate or Sodium Hydrogenphosphate, this white granular powder is soluble in water but insoluble in alcohol.

Disodium Phosphate Anhydrous is stable, incompatible with strong acids and hygroscopic.
As a laboratory chemical, Disodium Phosphate Anhydrous is a reagent and emulsifier with a very high buffering capacity.
Store at room temperature and protect from moisture, though Disodium Phosphate Anhydrous is acceptable to freeze.

Disodium Phosphate Anhydrous is made up of white, odorless, free flowing granules.
Disodium Phosphate Anhydrous appears as a colorless to white crystalline solid.
Disodium Phosphate Anhydrous is soluble in water.

Disodium phosphate anhydrous (Na₂HPO₄) is a versatile inorganic salt with a wide range of uses in food, industrial, laboratory settings thanks to its buffering capacity, solubility in water, and relative ease of handling under appropriate conditions.
Disodium Phosphate Anhydrous is a white, hygroscopic crystalline powder with a moderate basic pH in solution.

USES and APPLICATIONS of DISODIUM PHOSPHATE ANHYDROUS:
Disodium Phosphate Anhydrous is used as a food enhancer to quicken cooking time.
Disodium Phosphate Anhydrous is used along with trisodium phosphate in boilers; in the medical field, it is used as a laxative.

Disodium Phosphate Anhydrous can be obtained from us in required quantities at reasonable prices.
Chemical Manufacturing: Disodium Phosphate Anhydrous is utilized in the production of various chemicals, including phosphate salts and other specialty chemicals.

Acidity regulator: Disodium Phosphate Anhydrous adjusts and stabilizes the pH value of food to prevent acidity or alkalinity from affecting the taste and shelf life of food.
Emulsifier: Disodium Phosphate Anhydrous helps oil and water mix evenly, prevents separation, and improves the texture and appearance of food.

Stabilizer: Disodium Phosphate Anhydrous increases the stability of food, prevents ingredient separation and crystallization.
Anticaking agent: Disodium Phosphate Anhydrous prevents powdered or granular food from agglomerating during storage and maintains its fluidity.
Nutrition enhancer: Disodium Phosphate Anhydrous provides sodium and phosphorus elements to enhance the nutritional value of food.

Disodium Phosphate Anhydrous is used as emulsifier and buffer in foods and pharmaceuticals, metal phosphatising/electroplating reagent, scale inhibitor (boiling water treatment), textile/leather auxiliary, sequestrant, mordant in dyeing, fireproofing agent, reagent and buffer in analytical chemistry, cathartic, and veterinary laxative.

Disodium Phosphate Anhydrous is also used for weighting silk and in pottery glazes/porcelain/enamels, tanning, and soldering/brazing (instead of borax).
Disodium Phosphate Anhydrous is used in fertilizers, galvanoplastics, and as a dietary supplement.
Disodium Phosphate Anhydrous is used in conjunction with trisodium phosphate in foods and water softening treatment.

In foods, Disodium Phosphate Anhydrous is used to adjust pH.
Disodium Phosphate Anhydrous's presence prevents coagulation in the preparation of condensed milk.
Similarly, Disodium Phosphate Anhydrous is used as an anti-caking additive in powdered products.

Disodium Phosphate Anhydrous is used in desserts and puddings, e.g. Cream of Wheat to quicken cook time, and Jell-O Instant Pudding for thickening.
In water treatment, Disodium Phosphate Anhydrous retards calcium scale formation.
Disodium Phosphate Anhydrous is also found in some detergents and cleaning agents.

Heating solid disodium phosphate gives the useful compound tetrasodium pyrophosphate:
2 Na2HPO4 → Na4P2O7 + H2O
Laxative uses of Disodium Phosphate Anhydrous: Monobasic and dibasic sodium phosphate are used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.

Disodium Phosphate Anhydrous is commonly used in a laboratory setting as a component of buffer solutions for molecular biology and reverse-phase HPLC.
Disodium Phosphate Anhydrous is also used as an anti-caking agent and has applications in food, pharmaceuticals, and water treatment.

Disodium Phosphate Anhydrous is commonly utilized as a food additive, buffering agent, and emulsifier in the food industry.
Moreover, Disodium Phosphate Anhydrous serves as a component in water treatment, acting as scale inhibitor and corrosion inhibitor.
In addition, Disodium Phosphate Anhydrous finds its use in certain pharmaceutical products as well as a key ingredient in some cleaning agents.

Disodium Phosphate Anhydrous is used as a saline laxative to treat constipation.
Disodium Phosphate Anhydrous inhibits the calcium scale formation in water treatment plants.
Disodium Phosphate Anhydrous is used as laboratory reagent.

Disodium Phosphate Anhydrous is in granular form and functions as a buffering agent in cleaning ingredients.
Disodium Phosphate Anhydrous is used in home care applications, particularly in metal cleaners.
Disodium Phosphate Anhydrous is used in potable water applications, textile manufacturing, and water treatment processes.

Disodium Phosphate Anhydrous is widely used in food as an acidity regulator, emulsifier, stabilizer, and moisture retainer.
Disodium phosphate anhydrous is a common ingredient in the food industry, where it is used as an emulsifying agent, acidity regulator, and as a leavening agent in baked goods.

Disodium Phosphate Anhydrous is also used as a buffering agent in the formulation of cosmetic products such as shampoos, conditioners, and lotions.
In the detergent industry, Disodium phosphate anhydrous is used as a water softening agent in laundry detergents and dishwashing liquids.

Disodium Phosphate Anhydrous is also commonly used as a cleaning agent in the production of metal surfaces such as stainless steel.
Disodium Phosphate Anhydrous is commonly used in the food industry as an emulsifying agent, acidity regulator, and as a leavening agent in baked goods.

Disodium Phosphate Anhydrous also has many other applications in various industries, such as in the production of detergents, water treatment, and as a buffering agent in cosmetics.
Disodium Phosphate Anhydrous's excellent buffering ability, emulsifying properties, and water softening capability make it an essential ingredient in many products.

Food industry: Disodium Phosphate Anhydrous is used as a pH adjuster, emulsifier, buffering agent in processed cheese, condensed milk, instant puddings, cereals, precooked meats, pasta, etc.
Water treatment: Disodium Phosphate Anhydrous is used in water treatment and in preventing scale formation (calcium scale) in water systems.

Laboratory/biochemical use: Disodium Phosphate Anhydrous is used in buffer solutions (e.g., phosphate buffers) in molecular biology, HPLC etc.
Industrial: Disodium Phosphate Anhydrous can be used as an anti-caking agent, in detergents/cleaning agents, boiler water treatment, ceramics/enamels, dyeing — according to ChemicalBook.

Pharmaceutical: Disodium Phosphate Anhydrous is used as an excipient/emulsifier in certain processed foods and possibly in pharma preparations, although care must be taken.
Also hydrates are used for laxative solutions (though that is more monobasic/disodium phosphates).

Disodium Phosphate Anhydrous is the dibasic (hydrogen phosphate) sodium salt of phosphoric acid, used widely as a buffering agent, emulsifier, pH adjuster, in food, industrial, and laboratory contexts.
Disodium Phosphate Anhydrous is known for its alkalinity and is used as a buffering agent, protein modifier, stabilizer, and emulsifying agent.

Disodium Phosphate Anhydrous is commonly used during production of spray dried cheese and nonfat milk powders.
Disodium Phosphate Anhydrous protects the milk proteins from heat dehydration allowing the proteins to remain dispersed during the spray drying process, which assists in the solubility of the powders upon reconstitution with water.

Disodium Phosphate Anhydrous also stabilizes the emulsion to enhance flavor, body, and appearance of the final product.
Disodium Phosphate Anhydrous is used as a fertilizer, in pharmaceuticals, in food processing, and for many other uses.

-Applications of Disodium Phosphate Anhydrous in Pharma:
Buffering Agent:
Utilize Disodium Phosphate Anhydrous as a buffering agent, ensuring pH stability in various pharmaceutical preparations.
Stabilizer in Formulations:
Contribute to the stability of formulations, enhancing the shelf life of pharmaceutical products.

-Water Treatment uses of Disodium Phosphate Anhydrous:
Disodium Phosphate Anhydrous is used in water softening and purification processes to remove calcium and magnesium ions.
Disodium Phosphate Anhydrous is a key ingredient in boiler water treatment to prevent scale formation and improve the efficiency of industrial boilers.

-Food Processing uses of Disodium Phosphate Anhydrous:
Disodium Phosphate Anhydrous is used as a pH regulator, emulsifying agent, and stabilizer in the food industry.
Disodium Phosphate Anhydrous helps control acidity and improve texture in processed food products such as cheese, baking powder, and instant soups.

-Pharmaceuticals use of Disodium Phosphate Anhydrous:
Disodium Phosphate Anhydrous is used in the production of pharmaceuticals and medicinal formulations.
Disodium Phosphate Anhydrous functions as a buffering agent in oral rehydration salts and injectable medicines.

-Detergents & Cleaning Agents use of Disodium Phosphate Anhydrous:
Disodium Phosphate Anhydrous serves as a builder in detergents to enhance the cleaning action.
Disodium Phosphate Anhydrous acts as a chelating agent to improve the performance of surfactants and soaps.

BENEFITS / WHY USED of DISODIUM PHOSPHATE ANHYDROUS:
*Good buffering capacity:
Because it is a hydrogen phosphate, Disodium Phosphate Anhydrous provides moderate basic pH, useful in adjusting pH in formulations.
Disodium Phosphate Anhydrous has good water‐solubility (in water) and compatibility with many systems (food, lab, industrial).
Disodium Phosphate Anhydrous allows rapid dissolution, easy handling in dry processes (if moisture control is maintained).

*Versatility:
Disodium Phosphate Anhydrous is used in multiple applications across food, water treatment, lab chemicals, industrial salts.
Disodium Phosphate Anhydrous is used relatively straightforward chemistry and handling (non‐flammable, stable under normal conditions) when stored properly.

RELATED COMPOUNDS of DISODIUM PHOSPHATE ANHYDROUS:
*Other anions
sodium phosphite

*Other cations
Dipotassium phosphate
Diammonium phosphate

*Related compounds
Monosodium phosphate
Trisodium phosphate

KEY FEATURES of DISODIUM PHOSPHATE ANHYDROUS:
✔ High Purity & Quality – Manufactured under stringent quality control to ensure consistent and reliable performance.
✔ Soluble in Water – Easily dissolves in water, making it effective in various applications.
✔ Stable – Stable under normal conditions and ensures long shelf life.
✔ Non-Hygroscopic – The anhydrous form does not absorb moisture, making it ideal for storage and handling.

BENEFITS of DISODIUM PHOSPHATE ANHYDROUS:
*Water soluble
*Fertilizer
*Hygroscopic
*Odourless
*pH regulator
*Water softener
*Emulsifier
*Buffer
*Thickening

KEY FEATURES of DISODIUM PHOSPHATE ANHYDROUS:
*Pharmaceutical-Grade Purity:
Elevate your formulations with pharmaceutical-grade purity, meeting the most stringent requirements.

*Anhydrous Form:
The anhydrous form offers unique properties for specialized applications in pharmaceutical formulations.

*Stringent Quality Control:
Rigorous testing ensures steadfast consistency and adherence to the highest regulatory standards.

*Versatile Applications:
Disodium Phosphate, anhydrous, offers versatility in various pharmaceutical processes, contributing to optimal formulation outcomes.

*Comprehensive Documentation Support:
Streamlined documentation for regulatory submissions and quality assurance.

MANUFACTURE PROCEDURES of DISODIUM PHOSPHATE ANHYDROUS:
Disodium phosphate anhydrous is primarily manufactured through the reaction of phosphoric acid and sodium hydroxide.
The reaction generates sodium phosphate and water, which is then dehydrated to form anhydrous disodium phosphate.

CHARACTERISTICS & ADDITIONAL PROPERTIES of DISODIUM PHOSPHATE ANHYDROUS:
*Appearance:
Disodium Phosphate Anhydrous is a White granule or powder, odorless.

*pH in solution:
e.g., in a 50 g/L aqueous solution, pH ~8.9–9.2.

*Bulk density:
approx. 880 kg/m³ (for 0.2-1 mm mesh) per supplier.

*Loss on drying:
for example ≤0.2% at 105 °C in one product spec.

*Heavy metals/impurities in high‐grade products:
e.g., Fe ≤ 0.001%, Pb (as heavy metal) ≤0.001%, K ≤0.01% in one specification.

DENSITY AND CHARACTERISTICS of DISODIUM PHOSPHATE ANHYDROUS:
Disodium phosphate anhydrous has a density of 1.7 g/cm³.
Disodium Phosphate Anhydrous is a hygroscopic material, meaning that it attracts and holds onto water molecules from the surrounding environment.
This characteristic makes Disodium Phosphate Anhydrous useful as a water treatment agent in the control of scale formation and corrosion.

PROPERTIES of DISODIUM PHOSPHATE ANHYDROUS:
Disodium phosphate anhydrous is a white, crystalline powder with a milky odor.
The molecular formula of disodium phosphate anhydrous is Na2HPO4.
The anhydrous form of Disodium Phosphate Anhydrous means that it does not have any water molecules attached to it.

*Solubility
Disodium phosphate anhydrous is readily soluble in water, but not very soluble in ethanol or acetone.

*Melting Point
Disodium phosphate anhydrous has a melting point of 250°C (482°F).

PRODUCTION AND REACTIONS of DISODIUM PHOSPHATE ANHYDROUS:
Disodium Phosphate Anhydrous can be generated by neutralization of phosphoric acid with sodium hydroxide:
H3PO4 + 2 NaOH → Na2HPO4 + 2 H2O

Industrially, Disodium Phosphate Anhydrous is prepared in a two-step process by treating dicalcium phosphate with sodium bisulfate, which precipitates calcium sulfate:
CaHPO4 + NaHSO4 → NaH2PO4 + CaSO4

In the second step, the resulting solution of monosodium phosphate is partially neutralized:
NaH2PO4 + NaOH → Na2HPO4 + H2O

CHEMICAL BEHAVIOUR / OTHER PROPERTIES of DISODIUM PHOSPHATE ANHYDROUS:
When heated, Disodium Phosphate Anhydrous can convert (condense) to pyrophosphate (tetrasodium pyrophosphate) etc.
Disodium Phosphate Anhydrous is the hydrogen‐phosphate salt (HPO₄²⁻) of sodium.
Disodium Phosphate Anhydrous may absorb water to form hydrates (dihydrate, heptahydrate, etc) depending on conditions.
Disodium Phosphate Anhydrous is stable under normal storage and handling if kept dry and in closed container.

PHYSICAL and CHEMICAL PROPERTIES of DISODIUM PHOSPHATE ANHYDROUS:
CAS Number: 7558-79-4 (anhydrous form)
EC / EINECS Number: 231-448-7
Chemical formula: Na₂HPO₄ (or sometimes written as HNa₂O₄P)
Molar mass: ~ 141.96 g/mol (for the anhydrous form)
Appearance: white crystalline powder / solid (anhydrous)
Odor: odorless (it's an inorganic salt)
Form / Colour: white crystalline powder (anhydrous)
Density / specific gravity: approx. ~1.70 g/cm³ (for anhydrous)
Hygroscopic: Yes – the anhydrous form is hygroscopic (absorbs moisture)

Solubility: Soluble in water; insoluble (or very low solubility) in alcohol.
For example: “soluble in water; insoluble in alcohol” from ChemicalBook.
Melting / Decomposition: The anhydrous salt decomposes rather than cleanly melts;
one source: “converts to sodium pyrophosphate at ~240 °C” for anhydrous.
pH of aqueous solution: around pH ~ 9 (various sources: e.g., ~8.9–9.2 for 50 g/L at 25 °C)
Bulk density / other: One supplier lists bulk density ~880 kg/m³ for a certain mesh size
Formula: Na2HPO4
Molecular Formula: HNa2O4P

Molecular Weight / Formula Weight: 141.96–141.98 g/mol
CAS Number: 7558-79-4
EINECS Number: 231-448-7
HS Number: 28352200
MDL Number: MFCD00003496
InChI Key: BNIILDVGGAEEIG-UHFFFAOYSA-L
IUPAC Name: Disodium hydrogen phosphate
Chemical Name or Material: Sodium Phosphate Dibasic Anhydrous
PubChem CID: 24203
ChEBI: CHEBI:34683

SMILES: [Na+].[Na+].OP([O-])([O-])=O
Grade: USP
Assay: 99.99%
Percent Purity: 98.0–100.5% (USP)
Loss on Drying: 5.0% max. (USP)
Identification: Pass Test (USP)
Physical State: Granules / Powder / Solid / Crystals
Physical Form: Powder / Solid

Appearance (Form): Powder or crystals
Appearance (Colour): White
Color: White
Odor: Odorless
Bulk Density: 880 kg/m³
Density: No data available
Relative Density: No data available
pH: 8.7–9.3 (at 50 g/L, 25 °C)
pH (additional data): 8.9–9.2 at 50 g/L at 25 °C

Melting Point / Range: >450 °C
Melting Point (alternative): 250 °C
Decomposition Information: Decomposes >240 °C
Initial Boiling Point and Boiling Range: No data available
Boiling Point: No data available
Flammability (solid, gas): The product is not flammable
Upper/Lower Flammability or Explosive Limits: No data available
Flash Point: Not applicable

Autoignition Temperature: No data available
Decomposition Temperature: No data available
Water Solubility (20 °C): Soluble
Partition Coefficient (n-octanol/water): Not applicable for inorganic substances
Vapor Pressure: No data available
Relative Vapor Density: No data available
Viscosity, Kinematic: No data available
Viscosity, Dynamic: No data available

Particle Characteristics: No data available
Explosive Properties: No data available
Oxidizing Properties: None
Other Safety Information: Dissociation constant 6.87 at 20.4 °C
Condition to Avoid: No specific data available
Storage Condition: Stable under normal storage conditions
Chemical Stability: Stable
Chemical Classification: Inorganic phosphate salt

Chemical Formula: Na2HPO4
Molecular Formula: HNa2O4P
Molar Mass / Molecular Weight: 141.96 g/mol (anhydrous); 177.99 g/mol (dihydrate); 268.07 g/mol (heptahydrate)
Exact Mass: 141.94078407 Da
Monoisotopic Mass: 141.94078407 Da
Molecular Weight (alternative source): 141.95807056 g/mol
Appearance: White crystalline solid / white crystalline powder (est)
Color: White

Odor: Odorless
Density: 1.7 g/cm³
Melting Point: 240–250 °C (decomposes)
Boiling Point: 158.00 °C @ 760 mm Hg (est)
Solubility in Water: 7.7 g/100 mL (20 °C); 11.8 g/100 mL (25 °C, heptahydrate);
water solubility 1×10⁶ mg/L @ 25 °C (est)
Solubility: Insoluble in ethanol; insoluble in alcohol
log P (octanol/water): −5.8 / −2.148 (est)
Acidity (pKa): 12.35
Magnetic Susceptibility (χ): −56.6·10⁻⁶ cm³/mol
Refractive Index (nD): 1.35644 to 1.35717 at 20 °C

Hydrogen Bond Donor Count: 1
Hydrogen Bond Acceptor Count: 4
Rotatable Bond Count: 0
Topological Polar Surface Area: 83.4 Å²
Heavy Atom Count: 7
Formal Charge: 0
Complexity: 46.5
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0

Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 3
Compound Is Canonicalized: Yes
CAS RN: 7558-79-4
Alternative CAS RN: –
EC Number (EINECS): 231-448-7
MDL Number: MFCD00003496
FDA UNII: 22ADO53M6F
ECHA EINECS - REACH Pre-Reg: 231-448-7

Harmonised Tariff Code: 2835220000
IUPAC Name: Disodium hydrogen phosphate
Chemical Name or Material: Sodium Phosphate Dibasic Anhydrous
Assay: 95.00–100.00%
Food Chemicals Codex Listed: No
PH Number: 8.90
Vapor Pressure: 1.41 mmHg @ 25 °C (est)
Vapor Density: 4.9 (Air = 1)
Flash Point: 32.00 °F (0.00 °C) TCC (est)
Shelf Life: 24 months or longer if stored properly
Storage Temperature: +20 °C
Shipping Temperature: Ambient

Storage Conditions: Store in cool, dry place in tightly sealed containers,
protected from heat and light; store under nitrogen
Flammability: Not flammable
Oxidizing Properties: None
Appearance (Form): Crystalline / Powder / Solid
Chemical Formula: Na₂HPO₄
Appearance: White crystalline powder
Purity: 99% min
Solubility: Soluble in water
Storage: Store in a cool, dry place, away from moisture and direct sunlight

FIRST AID MEASURES of DISODIUM PHOSPHATE ANHYDROUS:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of DISODIUM PHOSPHATE ANHYDROUS:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of DISODIUM PHOSPHATE ANHYDROUS:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of DISODIUM PHOSPHATE ANHYDROUS:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of DISODIUM PHOSPHATE ANHYDROUS:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.

STABILITY and REACTIVITY of DISODIUM PHOSPHATE ANHYDROUS:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available