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Trisodium Phosphate (TSP)
Trisodium Phosphate
Chemical formula: Na3PO4.nH2O(n=0,12)
Molecular weight: Na3PO4.12H2O--380.14, Na3PO4--163.97
CAS No.: 7601-54-9 (anhydrous); 10101-89-0 (12 water)
Executive standard: HG/T2517-1993 (industrial grade) GB25565-2010 (food grade)
Properties: Appearance is white or colorless granular crystals, easily weathered, soluble in water, insoluble in organic solvents, the aqueous solution is alkaline reaction, the pH value of 1% aqueous solution is 12.1, the relative density is 1.62, the melting point is 73.4 ° C, the dodecahydrate is heated When heated to 55~65℃, it becomes decahydrate; when heated to 65~100℃, it becomes hexahydrate; when heated to 100~213℃, it becomes hemihydrate; when heated to above 212℃, it becomes anhydrous.
Uses: Food additive trisodium phosphate can be used in canned food, fruit juice beverages, dairy products, vegetable protein beverages, with a maximum dosage of 0.5g/kg; used in Western-style ham, meat products, aquatic products, with a maximum dosage of 3.0g/kg; used in cheese Maximum use 5.0g/kg. Packing: inner plastic outer woven, net weight 25Kg, 50Kg, 1000Kg per bag, stored in ventilated and dry place.
[Table unit: %]
| Serial number | Indicator name | National standard | Internal control index | National standard | Internal control index | |
| Trisodium phosphate | Anhydrous | Twelve waters | ||||
| 1 | Principal content | ≥ | 97 | 97 | 97.0 | 99 |
| 2 | Arsenic (AS) | ≤ | 0.0003 | 0.0003 | 0.0003 | 0.0003 |
| 3 | Fluoride (in F) | ≤ | 0.005 | 0.005 | 0.005 | 0.001 |
| 4 | Heavy metals (in Pb) | ≤ | 0.001 | 0.001 | 0.001 | 0.001 |
| 5 | Water insoluble matter | ≤ | 0.2 | 0.1 | 0.2 | 0.008 |
| 6 | Sulfate (in terms of SO4) | ≤ | / | 0.5 | / | 0.2 |
| 7 | Iron (in Fe) | ≤ | / | 0.0002 | / | 0.0005 |
| 8 | Lead (in Pb) | ≤ | 0.0004 | 0.0004 | 0.0004 | 0.0002 |
| 9 | PH (10g/L solution) | 11.5-12.5 | 11.5-12.5 | |||
| 10 | Chloride (in Cl) | ≤ | / | 0.001 | / | 0.0005 |
| 11 | Ignition reduction | 2 | 2 | 45-57 | 42 | |
| 12 | Appearance | White powder | White crystal | |||
1kg/bag 20bag/ carton 25kg/drum 25kg/bag


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