NILE CHEMICALS

ZINC  SULPHATE DRIED 

SPECIFICATION
ZnSO4.H2O     M.W.  179.45  
Minimum assay (complexometric) 99 - 100.5%
pH ( 5% water ) 4.0 - 5.2
Max. Limits of Impurities :  
Free acid passes test
Chloride ( Cl ) 0.002%
Arsenic ( As ) 0.0005%
Lead ( Pb ) 0.002%
Iron ( Fe ) 0.003%
Alkalies and earth alkalines 0.7%
Loss on drying ( 105OC ) 1.0%

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