Zinc Sulfate Heptahydrate

Zinc Sulfate Heptahydrate ACS
Synonym White Vitriol
CAS No. 7446 - 20 - 0 Grade : ACS
Mol. Wt. 287.58 g/mol Mol Formula : ZnSO4.7H2O
Appearance White Crystals which decompose on exposure to dry air
Identity Zn - Passes Test
SO4 - Passes Test
Test Solution(10 %W/V),Water Clear and Colorless Solution
PARAMETERS ACS
Assay 99.00 - 103.00%
pH(5% Aqueous Solution) at 250C 4.40 - 6.00
MAXIMUN LIMITS OF IMPURITIES
Insoluble Matter 0.01%
Chloride(Cl) 0.0005%
Nitrate(NO3) 0.002%
Ammonium(Nh4) 0.001%
Calcium(Ca) 0.005%
Heavy Metals (as Pb) 0.003%
Iron (Fe) 0.001%
Magnesium (Mg) 0.005%
Manganese (Mn) 0.0003%
Potassium (K) 0.01%
Sodium (Na) 0.05%
Zinc Sulfate Heptahydrate AR
Synonym White Vitriol
CAS No. 7446 - 20 - 0 Grade : AR
Mol. Wt. 287.58 g/mol Mol Formula : ZnSO4.7H2O
Appearance White Crystals which decompose on exposure to dry air
Identity Zn - Passes Test
SO4 - Passes Test
Test Solution(10 %W/V),Water Clear and Colorless Solution
PARAMETERS AR
Assay NLT 99.5%
pH(5% Aqueous Solution) at 250C 4.40 - 6.00
MAXIMUN LIMITS OF IMPURITIES
Insoluble Matter 0.01%
Chloride(Cl) 0.0005%
Nitrate(NO3) 0.002%
Ammonium(Nh4) 0.001%
Arsenic(As) 0.0001%
Calcium(Ca) 0.002%
Copper(Cu) 0.0005%
Heavy Metals (as Pb) 0.001%
Iron (Fe) 0.0005%
Magnesium (Mg) 0.005%
Manganese (Mn) 0.0003%
Potassium (K) 0.005%
Sodium (Na) 0.01%
Zinc Sulfate Heptahydrate
Synonym White Vitriol
CAS No. 7446 - 20 - 0 Grade : LR
Mol. Wt. 287.58 g/mol Mol Formula : ZnSO4.7H2O
Appearance White Crystals which decompose on exposure to dry air
Identity Zn - Passes Test
SO4 - Passes Test
Test Solution(10 %W/V),Water Clear and Colorless Solution
PARAMETERS LR
Assay 99.00 - 102.00%
pH(5% Aqueous Solution) at 250C 4.0 - 6.00
MAXIMUN LIMITS OF IMPURITIES
Loss on Drying 35 - 39%
Chloride(Cl) 0.01%
Cadmium(Cd) 0.001%
Calcium(Ca) 0.0005%
Copper(Cu) 0.005%
Total Nitrogen (N) 0.005%