Zinc Sulphate Heptahydrate/Znso4.7H2O/Zn 21%/CAS 7446-20-0

Model NO.: Zinc sulphate heptahydrate Purity: 90%~99% Appearance: Powder CAS No.: 7446-20-0 Specification: Zn: 21%MIN HS Code: 2833293000 Certification: CCIC, CIQ, SGS, RoHS, ISO Type: Zinc Sulphate Grade Standard: Agriculture Grade Transport Package: 25kg, 50kg, and etc. Origin: China
Zinc sulphate heptahydrate/ZnSO4.7H2O/Zn 21%/CAS 7446-20-0
Chemical Name : Zinc sulphate heptahydrate
CAS NO.: 7446-20-0
Molecular formula:ZnSO4.7H2O
Molecular Weight: 287.54


Property: white granular or power, orthorhombic crystals, convergent, in dry air will chalking. Heated to 0 ºCwill lost part of crystalline water, to 100ºCwill lost six molecules of water of crystallization, and lost seven molecules of water of crystallization at 280ºC, at 767ºCwill be decomposed into ZnO and SO3. Soluble in water, slightly soluble in ethanol and glycerin, it needs to keep sealed.

Usage: Mainly used as the raw material for zinc barium and other zinc salts, auxiliary materials for viscose fiber and Vinylon fibers. It also used for dyeing mordant, wood and leather preservative, glue clarifies and preservative, pharmaceutical emetic and fungicides. In agriculture, it can be used to trace element fertilizers.

Packaging: In 25kg or 50kg plastic woven bags within PE liner.

Specification:

Items		Specification
		Super grade	Grade I	Qualified grade
Major components	Zn %≥	22.51	22.06	20.92
	ZnSO4 7H2O %≥	99.0	97.0	92.0
Insoluble substance % ≤		0.02	0.05	0.10
pH-value (50g/l solution)≥		3.0	3.0	-
Chloride (Cl) content ≤%		0.20	0.60	-
Pb %≤		0.001	0.01	0.01
Fe %≤		0.003	0.02	0.06
Mn %≤		0.005	0.10	-
Cd %≤		0.001	0.01	-

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Product Categories : Ammonium Salt-SPRING