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DISODIUM PHOSPHATE
Disodium phosphate (DSP) = or Disodium hydrogen phosphate = sodium phosphate dibasic
Cas Number: 7558-79-4
10028-24-7 (dihydrate)
7782-85-6 (heptahydrate)
10039-32-4 (dodecahydrate)
EC Number: 231-448-7
Molecular Formula: HO4PNa2 or Na2HPO4 or HNa2O4P
Molecular Weight: 141.96
E Number: E339
Melting Point: loses H2O at 92.5 °C; Specific gravity: 2.066 at 15 °C
Chemical Names: DISODIUM HYDROGEN MONOPHOSPHATE; DISODIUM HYDROGEN ORTHOPHOSPHATE; DISODIUM HYDROGEN PHOSPHATE
Disodium phosphate is the sodium salt derived from phosphate rock in the earth.
Disodium phosphate (DSP), or Disodium hydrogen phosphate, or sodium phosphate dibasic, is the inorganic compound with the formula Na2HPO4.
Disodium phosphate is one of several sodium phosphates.
Disodium phosphate is known in anhydrous form as well as forms with 2, 7, 8, and 12 hydrates.
All are water-soluble white powders; the anhydrous salt being hygroscopic.
Disodium phosphate is a chemical added to foods, cosmetics, and other products.
Disodium phosphate’s useful as a preservative and a flavor enhancer, among other things.
Disodium phosphate is made from the elements sodium and phosphorus.
Chemists create Disodium phosphate in a lab.
They break down naturally-occurring phosphate rock and combine it with sulfuric acid and other substances.
Some foods like legumes and wheat products naturally have similar phosphates.
Processed foods usually have much higher levels of disodium phosphate as an additive.
Disodium phosphate falls into the larger category of sodium phosphates that are used in consumer products.
Disodium phosphate looks like a white, grainy powder.
Disodium phosphate is used in conjunction with trisodium phosphate in foods and water softening treatment.
In foods, Disodium phosphate is used to adjust pH.
Disodium phosphates presence prevents coagulation in the preparation of condensed milk.
Similarly, Disodium phosphate is used as an anti-caking additive in powdered products.
Disodium phosphate 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 retards calcium scale formation.
Disodium phosphate is also found in some detergents and cleaning agents.
Anhydrous disodium hydrogen phosphate is a white, hygroscopic, odourless powder.
Hydrated forms available include the dihydrate: a white crystalline, odourless solid;
the heptahydrate: white, odourless, efflorescent crystals or granular powder; and the dodecahydrate: white, efflorescent, odourless powder or crystals.
In mouthwash disodium phosphate acts as a buffering agent that helps maintain the pH or acidity of the product.
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;
Also Disodium phosphate is used for weighting silk and in pottery glazes/porcelain/enamels, tanning, and soldering/brazing (instead of borax);
Disodium phosphate is used in fertilizers, galvanoplastics, and as a dietary supplement.
Chemical name of Disodium Phosphate : Disodium Phosphate anhydrous
Chemical formula of Disodium Phosphate : Na2HPO4
CAS NO. of Disodium Phosphate: 7758-79-4
Properties of Disodium Phosphate: White or colorless crystalline free flowing solid, efflorescent in air,
easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.63, Disodium phosphate`s crystal with 12 H2O melting point at 34.6°C.
Disodium Phosphate (DSP), or sodium hydrogen phosphate, or sodium phosphate dibasic, is the inorganic compound with the formula Na2HPO4.
Disodium phosphate is one of several sodium phosphates.
Disodium phosphate is known in anhydrous form as well as forms with 2, 7, 8, and 12 hydrates.
All are water-soluble white powders; the anhydrous salt being hygroscopic.
Disodium hydrogen phosphate (Na2HPO4) is a sodium salt of phosphoric acid.
Disodium phosphate is a white powder that is highly hygroscopic and water soluble.
Disodium phosphate is therefore used commercially as an anti-caking additive in powdered products.
Disodium phosphate is also known as disodium hydrogen orthophosphate, sodium hydrogen phosphate or sodium phosphate dibasic.
Disodium phosphate is commercially available in both the hydrated and anhydrous forms.
Disodium phosphate (DSP) or sodium phosphate dibasic, or disodium hydrogen phosphate, is a multifunctional ingredient that can be used as an acid regulator, anticaking agent and nutrient supplement in food.
The European food additive number for Disodium phosphate is E339(ii).
DSP can be employed as a salt to assist caramelization for the production of class I caramel color ( E150a).
Also, Disodium phosphate may be added for quick cooking in enriched farina and macaroni products;
Disodium phosphate can also be used to modify condensed skim milk with calcium hydroxide in ice cream; and in cheese and bakery as an emulsifier.
Disodium phosphate is an inorganic compound derived from naturally occurring minerals and existing in two types:
anhydrous with the chemical formula Na2HPO4 and hydrate with three forms: dihydrate, heptahydrate and dodecahydrate.
Disodium phosphate is commercially produced by the reaction of phosphoric acid with sodium carbonate or sodium hydroxide.
A specific hydrate can be obtained by evaporating the resulting solution within Disodium phosphates stable temperature range,
e.g. dodecahydrate (below 35℃), heptahydrate (35.4-48℃), dihydrate (48.4-95℃) and anhydrous (above 95℃)
Disodium hydrogen phosphate is a sodium salt of phosphoric acid.
Disodium phosphate is a white powder that is highly hygroscopic and water soluble.
Disodium phosphate is therefore used commercially as an anti-caking additive in powdered products.
Disodium phosphate is used in conjunction with trisodium phosphate in many steam boiler applications.
Disodium phosphate supplies the inventory of free phosphates to retard calcium scale formation.
Monobasic and dibasic sodium phosphate is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.
Disodium Phosphate in Food
Generally, sodium phosphate dibasic is a multifunctional ingredient that can be used to improve nutritional value and cooking performance in food production.
Disodium phosphate could be an acid regulator due to its weak alkaline (ph value 8.4 to 9.6 with 1% solution);
used as an anticaking agent and moisture retention agent for its hygroscopic; as a quality improver for condensed milk;
as a stabilizer for dairy products, meat and fish products; a component in mixed salt for curing, and etc.
When used as a food additive, disodium phosphate plays a number of roles.
Disodium phosphate can help regulate the acidity of food, thicken it, stabilize it and maintain it at the proper moisture level.
Disodium phosphate also helps keep oil-based and water-based ingredients, which would otherwise separate, mixed together.
Disodium phosphate’s very common in processed and packaged foods.
Some of the purposes Disodium phosphate serves in the manufacturing process are:
Emulsifier: This is a chemical that helps to bind fats and water together.
Fats don’t mix with many other liquids without help. (Think about oil and vinegar.)
Emulsifiers have a chemical structure that helps them mix.
Disodium phosphate is a helpful emulsifier for dairy products and other foods.
Cheese, whipped cream, milk, and other dairy products have unique textures and consistencies because of disodium phosphate.
Preservative: Both sodium and phosphorus can help extend foods’ shelf life.
Some of the first instances of preserving and curing food used salt.
Disodium phosphate is also helpful in canning food since it prevents metal from rusting.
Flavor enhancer: Processed foods often have additives that strengthen their flavor and make them more savory.
Many foods have sodium-containing additives to enhance their flavor.
pH control: A food’s pH level (or level of acidity) can affect its nutritional value, color, and other characteristics.
Canning or using jars can alter foods’ pH levels.
Disodium phosphate can help control a food’s pH level throughout the production process.
Appearance White crystalline solid
CAS Number 7558-79-4
Density 0.5–1.2 g/cm3
EINECS Number 231-448-7
HS Code 28352200
IUPAC Name Sodium Hydrogen Phosphate
InChI 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-3
InChIKey BNIILDVGGAEEIG-UHFFFAOYSA-K
Main Hazards Irritant
Melting Point 250 ºC
Molar Mass 141.9 g/mol
Molecular Formula Na2HPO4
NFPA 704 H-1,F-0,R-0,C-NA
Other_Cations Dipotassium Phosphate;Diammonium Phosphate
RTECS Number WC4500000
Related Compounds Monosodium Phosphate;Trisodium Phosphate
Solubility 7.7 g/100 ml
Synonyms Disodium Hydrogen Orthophosphate;Sodium Hydrogen Phosphate;Sodium Phosphate Dibasic
Some common foods that have disodium phosphate are:
-Whipped cream
-Cheese
-Ice cream
-Milk
-Yogurt
-Seafood
-Meat
-Pasta
-Soda
-Gelatin powder
Potential Food Sources
Fish and seafood sometimes contain disodium phosphate to help keep them moist.
Otherwise, they lose significant amounts of water during processing and storage.
Disodium phosphate also helps preserve sausages and cooked meats and make soft drinks and cheese smooth.
Disodium phosphate helps preserve bakery products and enriched farina and maintain the smoothness of ice cream and artificially sweetened jelly.
A wide variety of other foods can also contain disodium phosphate, including breading or batters, breakfast cereal, candied fruit,
butter, chewing gum, cocoa and chocolate products, fruit juice products, coffee, tea, cider, dairy products, candy,
processed vegetables, pudding, pasta, alcoholic beverages, sausage casings, egg- or fat-based desserts, salt, salt substitutes, soups, tofu, sweeteners and water-based beverages.
Other Uses
Disodium phosphate has nonfood applications, too.
Disodium phosphate can be used in water treatment and as a flame retardant.
In medicine, Disodium phosphate may help lower high blood levels of calcium or increase low blood levels of phosphate.
Disodium phosphate may also be helpful for limiting some types of kidney stones.
Disodium phosphate can be used in cream of wheat to quicken cook time.
Disodium phosphate is used in conjunction with trisodium phosphate in many steam boiler applications.
Disodium phosphate supplies the inventory of free phosphates to retard calcium scale formation.
Synonims:
7558-79-4
Disodium hydrogen phosphate
DISODIUM PHOSPHATE
Disodium hydrogenorthophosphate
Sodium phosphate dibasic
Dibasic sodium phosphate
Acetest
Soda phosphate
Phosphoric acid, disodium salt
Disodium orthophosphate
Disodium acid phosphate
Sodium hydrogenphosphate
disodium hydrogenphosphate
Sodium hydrogen phosphate
Exsiccated sodium phosphate
Disodium acid orthophosphate
sec-Sodium phosphate
Sodium monohydrogen phosphate
Disodium monohydrogen phosphate
FEMA No. 2398
Hydrogen disodium phosphate
UNII-22ADO53M6F
Disodium hydrogen phosphate, anhydrous
Sodium phosphate, dibasic (anhydrous)
SODIUM PHOSPHATE, DIBASIC, ANHYDROUS
Na2HPO4
MFCD00003496
Phosphoric acid, sodium salt (1:2)
SODIUM PHOSPHATE, DIBASIC ANHYDROUS
22ADO53M6F
Disodium hydrogen orthophosphate
DSP
CHEBI:34683
Sodium Phosphate dibasic anhydrous
Phosphate of soda
di-Sodium hydrogen phosphate anhydrous, USP grade
Monohydrogen Sodium Phosphate
Caswell No. 778
Disodium hydrophosphate
FEMA Number 2398
Fleet enema
Natriumphosphat [German]
secondary Sodium phosphate
Sodium phosphate (NaHPO4)
Sodium phosphate, exsiccated
Disodium phosphate, anhydrous
CCRIS 5931
HSDB 376
Sodium orthophosphate, secondary
Sodium acid phosphate, anhydrous
EINECS 231-448-7
Potassium Phosphate Monobasic/Sodium Phosphate Dibasic
EPA Pesticide Chemical Code 076403
Sodium phosphate, dibasic, 98%, extra pure, anhydrous
Sodium monohydrogen phosphate (2:1:1)
Sodium phosphate, dibasic, 99+%, for analysis, anhydrous
Sodium phosphate, dibasic, 99+%, ACS reagent, suitable for buffer solutions
Disodiumhydrogenphosphate
ACMC-20al4j
HNa2O4P
sodium hydrogen-phosphate
disodium hydrogen-phosphate
Buffer Salt, pH 6.87
Buffer Salt, pH 7.42
EC 231-448-7
Sorensen's sodium phosphate
di-sodium hydrogen phosphate
phosphoric acid disodium salt
sodium hydrogen orthophosphate
Disodium hydrogen monophosphate
INS NO.339(II)
DTXSID1026039
INS-339(II)
Dibasic sodium phosphate anhydrous
Sodium phosphate,dibasic,anhydrous
dibasic sodium phosphate, anhydrous
BCP13559
Sodium hydrogen phosphate, anhydrous
Sodium phosphate dibasic, ACS grade
Disodium Hydrogen Phosphate Submicron
Disodium Phosphate (Fragrance Grade)
E-339(II)
AKOS015902440
AKOS015950661
Disodium Phosphate (Industrial Grade)
CCG-266159
DB14502
di-Sodium hydrogen phosphate, anhydrous
phosphoric acid, disodium salt, anhydrous
Sodium phosphate dibasic, biochemical grade
AK01050735
B7293
FT-0625321
Sodium phosphate dibasic, Trace metals grade
Y1397
C13558
Q418448
PHOSPHORIC-32P ACID,DISODIUM SALT (8CI,9CI)
UNII-GR686LBA74 component BNIILDVGGAEEIG-UHFFFAOYSA-L
