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DNS Fine ChemicalsZinc Sulfate Heptahydrate ACS

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


SPECIFICATIONS
Cas No 7446-20-0
Molecular Formula ZnSO4.7H2O
Molecular Weight 287.58
Assay 99.0 – 103.0% ZnSO4 . 7H2O
PH of a 5% solution at 25.0ºC 4.4 – 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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ZINC SULFATE HEPTAHYDRATE AR
Cas No 7446-20-0
Molecular Formula ZnSO4.7H2O
Molecular Weight 287.58
Description White crystalline compound
Insoluble matter Max 0.01%
Assay Min 99.0 – 100.5.0%
PH of 5% sol 4.4 – 6.0
Chloride (Cl) Max 0.001%
Nitrate (NO3) Max 0.001%
Iron (Fe) Max 0.0005%
Heavy metals (Pb) Max 0.001%
Ammonium (NH4) Max 0.001%
Calcium (Ca) Max 0.005%
Magnesium (Mg) Max 0.005%
Manganese (Mn) Max 0.0003%
Potassium (K) Max 0.005%
Sodium (Na) Max 0.01%
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ZINC SULFATE HEPTAHYDRATE LR
Cas No 7446-20-0
Molecular Formula ZnSO4.7H2O
Molecular Weight 287.58
Description White crystalline compound
Assay Min 98.0%
PH of 5% sol 4.4 – 6.0
Chloride (Cl) Max 0.005%
Iron (Fe) Max 0.002%
Heavy metals Max 0.005%
Yes! I am Interested

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