Product Description
Product Name: Zinc Sulphate Heptahydrate
CAS No.: 7446-20-0
molecular formula: ZnSO4·7H2O
Application: Widely used as feed additive, wood preservative, bleacher and also used in medicine, synthetic fiber, electrolysis, electroplating, pesticides and producing zinc salt, etc.
Packing: Net 25kg in plastic woven bag, or according to requirement.
Storage and transportation: packed in woven bags lined with polyethylene plastic bags of 50kg net each.Store in a dry, ventilated warehouse.Transportation should be covered, prevent from sun and rain, pay attention to moisture.Do not store and transport food items together.Do not mix with wet goods and other colored materials.The means of transport must be dry and clean.In case of fire, water can be used to save it.
Physicochemical properties: colorless rhombic prismatic crystals.Relative density 1.957.Melting point is 100 ºC.Soluble in water (96.5g/100ml at 20ºC);663.6g/100ml at 100ºC).Slightly soluble in alcohol and glycerol.Gradually weathering in dry air.At 280ºC, all the crystal water is lost to form anhydrous substance, which is decomposed above 500ºC.
1. Specification:
Zn: 21% min
CD: 50ppm max
As: 5ppm max
Pb: 50ppm max
Water insoluble: 0.05%max
2. Specification:
Zn: 21.5% min
CD: 50ppm max
As: 5ppm max
Pb: 50ppm max
Water insoluble: 0.05%max
3. Specification:
Zn: 22% min
CD: 50ppm max
As: 5ppm max
Pb: 50ppm max
Water insoluble: 0.05%max
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