High Quality Factory Selling Industry Grade Znso47H2O 99% Zinc Sulphate

• CAS No.: 7446-20-0
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: ≥99%
• Type: Zinc Sulfate
• Appearance: White Crystal
• Grade Standard: Industrial Grade
• Model NO.: sulfate-7-2
• CAS: 7446-20-0
• Transport Package: 25kg/Bag
• Specification: 80mesh
• Trademark: Sunway
• Origin: China
• HS Code: 28332930
• Production Capacity: 1500tons/Month

Product Description

1. Chemical Name: Zinc sulfate

2.Molecular Formula: ZnSO4·7H2O,

3.Molecular Weight: 287.54(Heptahydrate)

4.CAS: 7446-20-0(7H2O)

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

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

7.Packing: 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.

8.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.

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