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MAGNESIUM SULPHATE HEPTAHYDRATE (EPSOM SALT ) GENERAL SPECIFICATION
Purity as MgSo4.7H2O : 99%
Magnesium Sulphate : 48.5%
Magnesium Oxide as MgO : 16%
PH of 5% aqueous solution : 7 + 0.5
Sulphate of K and Ca : 0.1% each
Chlorides of K and Na : 0.1% each
Chlorides of CI : 300 ppm
Heavy metals as Pb : 2 ppm
Arsenic as As203 : 2 ppm
Iron as Fe : 20 ppm
Calcium as Ca : 300 ppm
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