Zinc Sulfate Heptahydrate Acs

General Detail of Zinc Sulfate Heptahydrate ACS :-
Typical appearance: colorless or white solid
Analytical use: preparation of complexometric titrant
Change in state (approximate): melting point, 40A C; dehydrates completely at 200A C
Aqueous solubility: 96 g in 100 ml at 20A C

Cas No : 7446-20-0
Molecular Formula : ZnSO4.7H2O
Molecular Weight : 287.58
Assay : 99.0 a 103.0% ZnSO4 . 7H2O
PH of a 5% solution at 25.0A C : 4.4 a 6.0
Maximum Allowable
Insoluble matter : 0.01%
Chloride (Cl) : 5 ppm
Nitrate (NO3) : 0.002%
Ammonium (NH4) : 0.001%
Calcium (Ca) : 0.005%
Iron (Fe) : 0.001%
Lead (Pb) : 0.003%
Magnesium (Mg) : 0.005%
Manganese (Mn) : 3 ppm
Potassium (K) : 0.01%
Sodium (Na) : 0.05%

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