Food Grade Zinc Sulfate Monohydrate CAS 7446-19-7

• CAS No.: 7446-19-7
• Formula: Znso4.H2O
• Certification: CIQ, ISO
• Model NO.: Food Grade
• Purity: >99%
• Type: Sulfate
• Grade Standard: Food Grade
• Usage: Preservative
• Transport Package: 25 Kgs Kraft Paper Bag
• Specification: Assay >99%
• Trademark: K&S
• Origin: Lianyungang
• HS Code: 2833293000
• Production Capacity: 100000 Mts Per Year

Product Description

 LIANYUNGANG KANDS CHEMICAL CO., LTD.
(K & S INDUSTRY LIMITED)
NO 4, Chaoyang East Rd, Xinpu District, Lianyungang, Jiangsu, China. 
 SPECIFICATION
 

zinc sulfate

 

Chemical name:

Zinc Sulfate

Molecular formula:

ZnSO₄.H₂O,ZnSO₄.7H₂O

Molecular weight:

179.48(Monohydrate), 287.54(Heptahydrate)

CAS NO:

7446-19-7(H₂O); 7446-20-0 (7H₂O)

Character:

It is colorless or white crystalline powder, odorlessness. Efflorescence in air. Acid hydrometer is 1.957(25/4ºC) to litmus. Melting point is 100ºC. It's soluble in water and glycerol, insoluble in ethanol and light toxicity, lose crystal water in 280ºC.

Usage:

It is used as food additives, animal feed, printing and dyeing, timber preservative.Used as analytical reagent.

Packaging:

It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.

Storage and Transport:

It should be stored in a dry and ventilative warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.

Specification		GB25579-2010	FCC,1996
Content w/%	ZnSO4.H2O	99.0-100.5	98.0-100.5
	ZnSO4.7H2O	99.0-108.7	99.0-108.7
As,mg/kg ≤		0.0003	-
Alkali metal w/% ≤		0.50	0.5
PH		passed	qualified
Se,mg/kg ≤		0.003	0.003
Hg,mg/kg ≤		0.0001	0.0005
Pb,mg/kg ≤		0.0004	0.001
Cd,mg/kg ≤		0.0002	0.0005