Chinese name：Zinc sulfate Heptahydrate
Alias：Zinc sulfate,heptahydrate; Zinc Sulphat; Heptahydrate; sulfuricacid,zincsat (1:1),heptahydrate; whitevitriol(heptahydrate); zincsulfate(1:1)heptahydrate; Zincsulfateheptahydrate(1:1:7); SULFURIC ACID ZINC SALT HEPTAHYDRATE; ZINC SULFATE, 7-HYDRATE; ZINC SULFATE, HYDROUS; ZINC SULPHATE 7H20; ZINC SULPHATE HEPTAHYDRATE; ZINC VITRIOL HEPTAHYDRATE; ZINC SULFATE HEPTA; ZINC SULPHATE HEPTA; zinc sulfate hydrate (1:1:7)
English name：Zinc sulfate Heptahydrate
CAS No.：7446-20-0
EINECS No.：231-793-3
Molecular formula：ZnSO₄·7H₂O
Molecular weight：287.5786
Property：Colorless prismatic crystal series prism crystal
Relative density：1.957
Solubility：Easily soluble in water, slightly soluble in alcohol and glycerol.
Usage：Used as mordant, wood preservative, bleacher in paper industry, can also be used in pharmaceutical, artificial fiber, electrolysis, electroplate, pesticide and production of zinc salt etc.
The product index is as follows：

The inspection report of zinc sulfate heptahydrate product

Product name

Zinc sulfate Heptahydrate

Quantity

5000kg

Batch No.

20120201

Specification

Total analysis

Inspection result:

Test item

Analytical pure

Chemical pure

PH

4.4～6.0

4.4～6.0

Clarity test

≤3

≤5

Water insoluble matter

≤0.01%

≤0.02%

Chloride

≤0.0005%

≤0.002%

Total nitrogen content

≤0.001%

≤0.002%

As

≤0.00005%

≤0.0002%

Na

≤0.05%

≤0.1%

Mg

≤0.005%

≤0.01%

K

≤0.01%

≤0.02%

Ca

≤0.005%

≤0.01%

Fe

≤0.0005%

≤0.002%

Mn

≤0.0003%

≤0.001%

Pb

≤0.001%

≤0.01%

Cd

≤0.0005%

≤0.002%

Cu

≤0.001%

≤0.005%

Content

≥99.5%

≥99.5%

Conclusion：

This product is in line with the provision of GB/T 666-2011.