Sunway Self-Production High Quality Zinc Sulphate Heptahydrate

• CAS No.: 7446-20-0
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: ≥99%
• Type: Zinc Sulfate
• Appearance: White Crystalline Powder
• Grade Standard: Food Grade
• Model NO.: Industrial Grade
• Transport Package: 25kg/Bag
• Specification: 80mesh
• Trademark: Sunway
• Origin: China
• HS Code: 28332930
• Production Capacity: 1500tons/Month

Product Description

Zinc Sulfate

Chemical Name: Zinc sulfate

Molecular Formula: ZnSO₄·7H₂O

Molecular Weight: 287.54 (Heptahydrate)

CAS: 7446-20-0 (7H₂O)

Character: Colorless or white crystalline powder, odorless. Efflorescence in air. Acid hydrometer is 1.957 (25/4) to litmus. Melting point is 100. Soluble in water and glycerol, insoluble in ethanol. Light toxicity, loses crystal water at 280.

Usage: Food additives, animal feed, printing and dyeing, timber preservative. Analytical reagent.

Packing: Packed in polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. Net weight of each bag is 25kg.

Storage and Transport: Store in a dry and ventilative warehouse. Keep away from water and moisture during transport. Unload with care to avoid bag damage. Store separately from poisonous substances.

Provided by Nanjing Jiayi Sunway Chemical Co., Ltd.

Index		Specification		GB25579-2010	FCC,1996
content w/%	ZnSO4.H2O	Content	ZnSO4.H2O	99.0	99.0
	ZnSO4.7H2O		ZnSO4.7H2O	99.0	99.0
(As), mg/kg          ≤		As		0.0003	--
alkali metal      w/% ≤		Alkali metal		0.50	0.5
acidity		PH		pass test	normal
(Se), mg/kg          ≤		Se		0.003	0.003
(Hg), mg/kg          ≤		Hg		0.0001	0.0005
(Pb), mg/kg           ≤		Pb		0.0004	0.001
(Cd), mg/kg           ≤		Cd		0.0002	0.0005