Tetra Potassium Pyrophosphate (TKPP)
Appearance: white powder.
Physical and Chemical Data:
Melting Point
Boiling Point
Density
1109 ºC
1482 ºC
2.534 g/cm3
Solubility: soluble in water, insoluble in ethanol. Water solution is Alkaline. Solubility is 187g in 100g water (25ºC).
Characteristic:
TKPP is made by potassium hydrogen phosphate which is loss water in the process of melting. in the air, it has a strong hygroscopicity, have the effect of restrain food corruption, fermentation.
Main Indexs:
Index
Stardard
Appearance
White powder
Purity by wt %
98 min
Total Phosphorus (P2O5) by wt %
41 min
Loss on ignition by wt %
0.5 max
Water insoluble matter by wt %
0.2 max
Fe by mg/kg
50 max
pH (1g/100ml water)
10~11
Lead by mg/kg
1 max
F by mg/kg
10 max
As by mg/kg
1 max
Heavy metal by mg/kg
10 max
Chloride by wt %
0.45 max
Particle size (through 60mesh) by wt %
70 min
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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