Zinc Sulphate

ZINC SULPHATE CRYSTAL

Our zinc sulphate crystal is used as a mordant or to preserve wood and electro deposition of zinc. It is delivered by us in powdered form for agricultural purposes as a weed killer and to give protection against pests. We store it in tightly closed containers in a cool, dry, ventilated area to avoid it from loosing its basic properties.

Zinc Sulphate - Extrapure AR (CAS No. 7446-20-0 )
ZnSO4.7H2O   M.W.287.54
Description White crystalline compound
Solubility 10% aq. Solution clear colourless
Ph(5%aq. Solution) 4.4-6.0
Assay min.99.5%
Chloride (Cl) max.0.0005%
Iron (Fe) max.0.0005%
Heavy Metals (Pb) max.0.001%
Copper(Cu) max.0.0005%
Total Nitrogen(N) max.0.0005%
Potassium(K) max.0.001%
Sodium(Na) max.0.001%
Zinc Sulphate - Pure (CAS No. 7446-20-0 )
ZnSO4.7H2O   M.W.287.54
Description White crystalline compound
Assay min.99%
Chloride (Cl) max.0.005%
Iron (Fe) max.0.001%
Heavy Metals (Pb) max.0.001%

Zinc sulphate dried is a colorless crystalline, water-soluble chemical compound. An aqueous solution of dried zinc sulfate is claimed to be effective at removing moss.

Zinc Sulphate Dried - Extrapure AR (CAS No. 7446-19-7)
ZnSO4.H2O   M.W.169.54
Description White crystalline compound
Solubility 10% aq. Solution clear colourless
pH(5% aq. solution) 4.4-6.0
Assay min.99%
Chloride (Cl) max.0.001%
Iron (Fe) max.0.0005%
Heavy Metals (Pb) max.0.001%
Copper(Cu) max.0.0005%
Total Nitrogen(N) max.0.0005%
Potassium(K) max.0.001%
Sodium(Na) max.0.001%
Zinc Sulphate Dried - Pure (CAS No. 7446-19-7)
ZnSO4.H2O   M.W.169.54
Description White crystalline compound
Solubility 10% aq. Solution clear colourless
Ph(5%aq. Solution) 4.4-6.0
Assay min.98%
Chloride (Cl) max.0.005%
Iron (Fe) max.0.001%
Heavy Metals (Pb) max.0.001%

Zinc Sulfate Heptahydrate ACS

Formula : ZnSO4.7H2O

Formula Wt. : 287.58

Cas No : 7446-20-0

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
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%
Formula: ZnSO4.7H2O Formula Wt.:287.58
Cas No: 7446-20-0 Grade: AR
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%
Formula: ZnSO4.7H2O Formula Wt.: 287.58
Cas No: 7446-20-0 Grade: LR
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%