Zinc sulfate heptahydrate is an inorganic compound, featuring colorless, rhombic crystal system prisms, as a white crystalline powder that dissolves in water and slightly in ethanol. It loses water upon heating to 200°C and decomposes at 770°C.

Chinese Name:Zinc sulfate heptahydrate (Bluestone, Zinc sulfate, Zinc sulfate heptahydrate, Hydrated zinc sulfate) 

Chemical Formula:ZnSO4·7H2O

Molecular Weight:287.55

CAS Registration Number:7446-20-0 

EINECS Registration Number:616-097-3

Melting Point:100 ℃ Boiling Point:500 ℃

Solubility in water:960 g/L Density:1.957 g/cm³ 

Application:Dye fixatives, wood preservatives, paper industry bleaches, artificial fibers, electrolysis, electroplating, pesticides, and zinc salt production.

Zinc sulfate heptahydrate is commonly used in industry as the primary raw material for producing zinc barium white and zinc salts. It also serves as a mordant in dyeing, preservative for wood and leather, and an essential auxiliary material in the production of粘胶纤维 (viscose fiber) and vinyl fiber. Additionally, it finds applications in electroplating and electrolytic industries and can be used in cable manufacturing. In agriculture, it can prevent diseases in fruit tree seedlings and is a commonly used fertilizer to supplement trace elements of zinc in crops, serving as both base fertilizer and foliar fertilizer.

1. Feed-grade zinc sulfate heptahydrate (as tested per GB/T25865-2010), this grade is also suitable for industrial use.

2. Food-grade zinc sulfate heptahydrate (tested according to GB 25579-2010)

3. Analyzed Pure Zinc Sulfate Heptahydrate (Based on GB/T 666-2011 Testing)

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