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Zinc Sulphate

Zinc Sulphate Heptahydrate and Zinc Sulphate Monohydrate.

  • Detail Information

Zinc Sulphate Heptahydrate

Chemical formula: ZnSO4·7H2O

HS NO.: 28332930

CAS No.: 7446-20-0

EINECS No.: 231-793-3

Appearance: White Crystal

Zinc Sulphate Heptahydrate Details:

Items

Excellent Grade

First Grade

Qualified

Zn w/%

≥22.51%

≥22.06%

≥20.92%

ZnSO4·7H2O w/%

≥99.0%

≥97.0%

≥92.0%

Water-insoluble %

≤0.020%

≤0.050%

≤0.10%

pH

≥3.0

≥3.0

≥3.0

Cl w/%

≤0.20%

≤0.60%

≤0.80%

Pb w/%

10ppm max

100ppm max

100ppm max

Fe w/%

≤0.003%

≤0.020%

≤0.060%

Mn w/%

≤0.005%

≤0.10%

≤0.20%

Cd w/%

10ppm max

100ppm max

100ppm max

 

Zinc Sulphate Monohydrate

Chemical formula: ZnSO4·H2O

HS NO.: 28332930

CAS No.: 7733-02-0

EINECS No.: 231-793-3

Appearance: White Powder

Zinc Sulphate Monohydrate Details:

 

Items

Excellent Grade

First Grade

Qualified

Zn w/%

≥35.70%

≥35.34%

≥34.61%

ZnSO4·H2O w/%

≥98.0%

≥97.0%

≥95.0%

Water-insoluble %

≤0.020%

≤0.050%

≤0.10%

pH

≥4.0

≥4.0

≥4.0

Cl w/%

≤0.20%

≤0.60%

≤0.60%

Pb w/%

20ppm max

50ppm max

70 ppm max

Fe w/%

80ppm max

80ppm max

80ppm max

Mn w/%

≤0.01%

≤0.03%

≤0.05%

Cd w/%

20ppm max

50ppm max

70 ppm max

 




Other Sulphates

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