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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. iupac name : tetrasodium diphosphate cas number : 7722-88-5 molecular formula : na4o7p2 molar mass : 265.90 g·mol−1 appearance : colorless crystals odor : odorless density : 2.534 gcm3 melting point : 988 °c contact for more details.
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