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Zinc Sulphate Hetahydrate ZN:21% Crystal Powder

Zinc Sulphate Hetahydrate ZN:21% Crystal Powder

Zinc sulphate heptahydrate/monohydrate tech/fertilizer grade CAS: 7646-85-7 Appearance: white crystal or offwhite to yellowish white powder Specification: Monohydrate Heptahydrate Packing: 25kgs plastic woven bag

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Product Details

Zinc sulphate heptahydrate/monohydrate tech/fertilizer grade

CAS: 7646-85-7

Appearance: white crystal or  offwhite to yellowish white powder

Specification: 

Monohydrate

Test ItemsStandard
MgO (soluble in acidtity)27%min
MgO(soluble in water)23%min
Chloride2%max
Moisture2%max
S20%min

Heptahydrate

Test ItemsStandard
Main content(MGSO4.7H2O)95%min
Mg9.27%min
S12.35%min
Ph value4.5-6.5
Chloride(Cl)500ppm max
Iron(Fe)15ppm max
Arsenide(As)0.02 mg/kg max  
Water insoluble10ppm max  
Heavy metal(Pb)8ppm max 
Particle size0.1mm-1mm  
Ni2.95 mg/kg max
Cd1.10 mg/kg max
Cr8.6 mg/kg max
Se0.04 mg/kg max 
Hg5.5 ug/kg max

Packing: 25kgs plastic woven bag

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