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| Tetrasodium pyrophosphate |
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| Tetrasodium pyrophosphate |
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| 7722-88-5 |
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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
Chemical Properties white crystalline powder or colourless crystals
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.
Reactivity Profile Tetrasodium pyrophosphate is basic. Reacts exothermically with acids. Incompatible with strong oxidizing agents. Decomposes in ethyl alcohol. |
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