Appearance:Colorless rhombic crystal,Granule or powder,Granule or powder ZnSO4.7H2O%:98% Zn %:22% As %:0.0001 Cd%:0.0002

NAME :ZINC SULPHATE   ZnSO4.7H2O 

Quality standard:

ZnSO4.7H2O% Zn % As % Pb % Cd%

≥97.3 ≥22  ≤0.0005  ≤0.0010 ≤0.0020

98 22 0.0001 0.0003 0.0002

Function:

First,Used as a mordant, wood preservative, papermaking industry bleaching agent, also used in medicine, synthetic fiber, electrolysis, electroplating, pesticide and production zinc salt, etc

Second,For the preparation of zinc patching medicine, astringent, etc  

Third, Zinc sulfate is allowed to use food zinc enhancer. China's regulation can be used for salt, usage for 500 mg/kg; In the infant food for 113 ~ 318 mg/kg; In the dairy products for 130 ~ 250 mg/kg; In the grain and its products for 80 ~ 160 rag/kg; In pinocytosis and milk beverage for 22.5 ~ 44 mg/kg.

Forth, Zinc sulfate is allowed to use food zinc enhancer. China's regulation can be used for salt, usage for 500 mg/kg; In the infant food for 113 ~ 318 mg/kg; In the dairy products for 130 ~ 250 mg/kg; In the grain and its products for 80 ~ 160 rag/kg; In pinocytosis and milk beverage for 22.5 ~ 44 mg/kg.

New Zinc sulphate heptahydrate