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Name:Potassium pyrophosphate

Synonyms:Potassium diphosphate; Tetrapotassium pyrophosphate

Molecular Formula:K4P2O7

Molecular Weight:330.33

CAS Registry Number: 7320-34-5


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.
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.
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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