NILE CHEMICALS

POTASSIUM  DIHYDROGEN ORTHOPHOSPHATE

SPECIFICATION
KH2PO4      M.W.  136.09  
Minimum assay ( acidimetry on dried substance ) 98 - 101%
pH  ( 10% water ) 4.1 - 4.0
Maximum Limits of Impurities :  
Chloride ( CI ) 0.001%
Fluoride ( F ) 0.001%
Sulphate ( SO4 ) 0.02%
Heavy metals ( as Pb ) 0.001%
Arsenic ( As ) 0.0002%
Iron  ( Fe ) 0.002%
Copper  ( Cu ) 0.0025%
Sodium ( Na ) 0.1%
Zinc  ( Zn ) 0.0025%
Reducing substances by KMnO4 ( as O ) 0.04%
Substances insoluble in water  0.2%
Loss on drying ( 130OC ) 2.0%
   

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