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Food additive sodium tripolyphosphate(STPP)
Food additive sodium hexametaphosphate(SHMP)
Food additive Sodium pyrophosphate(TSPP) anhydrous
Food additive Sodium Acid Pyrophosphate(SAPP)
Food additive Tetrapotassium Pyrophosphate(TKPP)
Food additive Monopotassium Phosphate(MKP)
Food additive Tripotassium Phosphate(TKP)
Food additive trisodium phosphate
Food additive sodium hydrogen phosphate
Electronic grade sodium dihydrogen phosphate/Mono Sodium Phosphate
n-Hexane (Chromatographic grade)
Trichloromethane (Chromatographic grade)
Toluene (Chromatographic grade)
n-Hexane (for residue analysis)
Trichloromethane (for residue analysis)
Electronic grade Ammonium Sulfate
Electronic grade Phosphoric acid
English name: sodium phosphate
Alias: Trisodium phosphate anhydrous for food
Molecular formula: Na3PO4·12H2O
Property: The important two are sodium phosphate tribasic dodecahydrate and anhydrous substance. Anhydrous substance is white crystal. Density 2.536g/cm3. Melting point 1340℃. Sodium phosphate tribasic dodecahydrate is colorless cubic crystal or white powder. Density 1.62g/cm3. Melting point 73.3℃. Decompose at 76.7℃. Turns into anhydrous substance after heating to 100℃ after losing 12 crystal water. Weathering in the dry air. Easily soluble in water. Its aqueous solution is strong alkaline. Insoluble in carbon disulfide and ethanol.
Executive standard: GB 1886.338-2021
Quality standard:
Sensory requirements: Should be comply with the following requirements.
Item | Requirements |
Color | White |
Structural state | Crystalline powder and particle |
Physicochemical index: Should be comply with the following requirements.
Item | Index |
Sodium phosphate tribasic dodecahydrate(Na3PO4•12H2O),w/% ≥ | 97.0 |
pH (10g/L solution) | 11.5~12.5 |
Arsenic (As)/ (mg/kg) ≤ | 3.0 |
Fluoride (Calculated by F)/ (mg/kg) ≤ | 50 |
Heavy metal (Calculated by Pb)/ (mg/kg) ≤ | 10 |
Lead (Pb)/ (mg/kg) ≤ | 4.0 |
Water insoluble matter,w/% ≤ | 0.2 |
Ignition loss (Na3PO4•12H2O),w/% | 45.0~57.0 |
Usage: Mainly used as emulsifier, buffer and quality improver in food industry.
