Name:Potassium pyrophosphate
Synonyms:Potassium diphosphate; Tetrapotassium pyrophosphate
Molecular Formula:K4P2O7
Molecular Weight:330.33
CAS Registry Number: 7320-34-5
EINECS:230-785-7
Anhydrous tetra potassium phosphate is in white powder or granular. Relative density 2.534 g/cm3and melting point 1109℃; It is apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25℃,its solubility in water is 187g/100g water; It can chelate with alkaline metals ions or heavy metal ions.
Application:
It mainly applied to electroplating without cyanate, industrial or household detergents; It can used as a buffering reagent as well as stabilizer for hydrogen peroxide; It can also be used as dispersion agent for ceramic, clay, latex and pigments etc.
Specifications:
| Product name |
Potassium Pyrophosphate |
| Items |
Specifications |
| Assay(K2HPO4) |
98.0% Min. |
| Water Insoluble |
0.2% Max. |
| Arsenic |
0.0003% Max. |
| Heavy Metals |
0.001% Max. |
| Pb |
0.002% Max. |
| Fluoride |
0.001% Max. |
| Loss on Drying |
2.0% Max. |
Packing:25KG,inner plastic and outer plastic or paper.
Storage:be preserved in shady,cool and dry place,keep away from sunlight and heat.
Shelf life:18months
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