Pharmaceutical Chemicals
Tetrasodium Pyrophosphate CAS 7722-88-5 as Food Additive (jerryzhang001@chembj.com)
7722-88-5
Description
Tetrasodium Pyrophosphate CAS 7722-88-5 as Food Additive
Product Name: Tetrasodium pyrophosphate;
Synonyms: DIPHOSPHORIC ACID TETRASODIUM SALT;DIPHOSPHORIC ACID, TETRASODIUM SALT, DECAHYDRATE;DECAHYDRATE TETRASODIUM PYROPHOSPHATE;TETRA-SODIUM DIPHOSPHATE;TETRA-SODIUM DIPHOSPHATE-10-HYDRATE;TETRA-SODIUM DIPHOSPHATE DECAHYDRATE;TETRASODIUM PYROPHOSPHATE;SODIUM DIPHOSPHATE;
CAS: 7722-88-5;
MF: Na4O7P2;
MW: 265.9;
EINECS: 231-767-1;
Melting point: 80 °C;
Boiling point: 93.8 °C;
General Description:
Odorless, white powder or granules. Mp: 995°C. Density: 2.53 g cm-3. Solubility in water: 3.16 g / 100 mL (cold water); 40.26 g / 100 mL boiling water. Used as a wool de-fatting agent, in bleaching operations, as a food additive. The related substance Tetrasodium pyrophosphate decahydrate (Na4P2O7 0H2O) occurs as colorless transparent crystals. Loses its water when heated to 93.8°C.
Tetrasodium pyrophosphate, also called sodium pyrophosphate, tetrasodium phosphate or TSPP, is a colorless transparent crystalline chemical compound with the formula Na4P2O7. It is a salt composed of pyrophosphate and sodium ions. Toxicity is approximately twice that of table salt when ingested orally.There is also a hydrated form, Na4P2O7 · 10(H2O).
Tetrasodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive. Common foods containing tetrasodium pyrophosphate include chicken nuggets, marshmallows, pudding, crab meat, imitation crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats where it is used as a palatability enhancer.
Tetrasodium pyrophosphate is sometimes used in household detergents to prevent similar deposition on clothing, but due to its phosphate content it causes eutrophication of water, promoting algae growth.
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