Potassium pyrophosphate

Product Description

 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
 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