Other names: Potassium diphosphate; Tetrapotassium pyrophosphate
CAS number: 7320-34-5
Molecular formula: K4P2O7
Molecular Weight: 330.34
Characteristics:
Potassium pyrophosphate is a white powder. Relative density 2.3534 and melting point 1109°C; It is apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25°C,its solubility in water is 187g/100g water; It can chelate with alkaline metals ions or heavy metal ions.
Specification:
Items |
Food Grade |
Appearance |
white powder |
Assay % ≥ |
96 |
PH Value |
10.0-10.7 |
Water Insoluble matter % ≤ |
0.1 |
Heavy Metals(as Pb)% |
0.001 |
Ortho Phosphate |
Pass |
Iron(Fe) % ≤ |
0.03 |
(As As)% ≤ |
0.0003 |
Packing:
In 25kg pp woven bags with plastic liner.
Use:
Potassium pyrophosphate applied in industries of detergents as detergent auxiliary, paper production to bleach and electroplating; In food industry it is used as buffering agent, emulsifier, nutrition ingredients and quality improver.
MSDS: Available when required. |