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1 Metric Ton |
Negotiable |
Trisodium phosphate anhydrous 7601-54-9 BUFFER SOLUTION, PH 2.5;BUFFER SOLUTION, PH 6.5;BUFFER SOLUTION, PH 3.0;BUFFER SOLUTION, PH 9.5;BUFFER SOLUTION, PH 9.0;BUFFER SOLUTION, PH 8.5;BUFFER SOLUTION, PH 8.0;BUFFER SOLUTION, PH 7.0
English name: sodium phosphate
Alias: Trisodium phosphate anhydrous for food
Molecular formula: Na3PO4·nH2O (n=0,n=1,n=12)
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 25565-2010
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 |
Anhydrous trisodium phosphate anhydrous (Na3PO4, calculated by ignition dry basis),w/% ≥ |
97.0 |
Sodium phosphinate hydrate(Na3PO4•H2O, calculated by ignition dry basis),w/% ≥ |
97.0 |
Sodium phosphate tribasic dodecahydrate(Na3PO4•12H2O),w/% ≥ |
97.0 |
pH (10g/L solution) |
11.5~12.5 |
Arsenic (As)/ (mg/kg) ≤ |
3 |
Fluoride (Calculated by F)/ (mg/kg) ≤ |
50 |
Heavy metal (Calculated by Pb)/ (mg/kg) ≤ |
10 |
Lead (Pb)/ (mg/kg) ≤ |
4 |
Water insoluble matter,w/% ≤ |
0.2 |
Ignition loss (Na3PO4),w/% ≤ |
2 |
Ignition loss (Na3PO4•H2O),w/% |
8~11 |
Ignition loss (Na3PO4•12H2O),w/% |
45~57 |
Usage: Mainly used as emulsifier, buffer and quality improver in food industry.
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