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ZINC SULPHATE HEPTAHYDARTE

ZINC SULPHATE HEPTAHYDARTE

Product Details:

X

Product Description

Product Details :

Product Name

: ZINC SULPHATE HEPTAHYDRATE

C.A.S. No.

: 7446-20-0

Molecular Formula

: ZnSO4.7H2O

Molecular Weight

: 287.5


SPECIFICATION

IP

BP

USP

Description

Colorless , transparent crystals or white powder crystalline powder ,odorless ,efflorescent.

White or almost white , crystalline powder or colorless, transparent crystals, efflorescent.

White or almost white, crystalline powder or colorless, transparent crystals, efflorescent.

Solubility

-

Very soluble in water and practically insoluble in ethanol (96 % )

-

Appearance of solution

Clear and colorless

5 % solution is clear and colorless.

Clear and colorless

Identification

(A) By Color

(B) Reaction

(C) Reaction



A: It gives reaction of Sulphates.

B: It gives reaction of Zinc.



A: It gives reaction of Sulphates.

B: It gives reaction of Zinc.

C: It complies with the limit test of the Assay.


A : It gives reaction of Sulphates.

B : It gives reaction of Zinc.


pH (5 % solution )

4.4 - 5.6

4.4 - 5.6

-

Acidity

-

-

Solution is not colored pink by methyl orange TS

Chloride

Not more than 250 ppm

Not more than 300 ppm

-

Iron

Not more than 100 ppm.

Not more than 100 ppm

-

Arsenic

Not more than 10 ppm.

-

NMT 14 ppm

Lead

-

-

NMT 20 ppm

Alkalies & alkaline earths

-

-

NMT 0.9 %

Residual solvents

-

-

Meets the requirement

Assay

99 .0 % to 104.0 %

99.0 % - 104.0 %

99.0 % - 108.7 %


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