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CAS:7446-20-0 Zinc Sulphate Heptahydrate Crystals Used For Man-Made Fibres

Basic Information
Place of Origin: Hunan, China
Brand Name: ZnSO4.7H2O
Model Number: Zinc Sulphate Heptahydrate
Minimum Order Quantity: 25 ton/20'
Price: Negotiable
Packaging Details: in the woven bag lined with plastic, net wt. 25kgs or 1000kgs bags or customized
Delivery Time: 20 Days
Payment Terms: L/C; D/P; T/T
Supply Ability: 20000 Ton/per year
Detail Information
Molecular Weight: 287.5786 Appearance: White Crystal
HS Code: 28332930 Water Insoluble Matter: 0.05% Max
Application: Agricultural Sprays Use: Animal Feeds
CAS: 7446-20-0 Melting Point: 100 °C

Product Description

CAS:7446-20-0 Zinc Sulphate Heptahydrate Crystals Used For Man-Made Fibres

 
Description:
 
Formula ZnSO·7(HO)
Molecular Weight 287.5786
CAS 7446-20-0
Appearance White Crystal
Use Animal Feeds
HS Code 28332930
Water Insoluble Matter 0.05% Max
Melting point 100 °C

 

Application:

1. Zinc sulfate heptahydrate is used as an analytical reagent, mordant and phosphor substrate for the determination of copper and chlorate by intravenous drip analysis of analytical reagent. Serum protein test, determination of sulfur content of steel and slag. Coal dye, disinfectant, haploid breeding preparation of various media.

2. Zinc sulfate heptahydrate was used as a zinc source in plant cell culture to support cell membrane stability and gene regulation.

 
Production method:
 

In the reactor, dilute solution of 18% sulfuric acid dissolved zinc slag was first added, and zinc oxide (or raw material containing zinc) was added under agitation to prepare slurry. Then sulfuric acid was added and the reaction was carried out in an acid resistant reactor with agitation. The control Ph5.1 was the end point of the reaction, and the concentration was about 38° Be. Reaction liquid after filtering, liquid heated to 80 ℃, and zinc powder, such as copper, cadmium, nickel Chemicalbook replacement, then through filtration, the filtrate is heated to above 80 ℃, join the potassium permanganate (or bleaching powder) and heated to boiling, the impurities such as iron, manganese oxide, the filtrate after filtration by clarify first, and then evaporating to 49 ~ 52 ° Be, by the cooling crystallization, centrifugal dehydration, drying, seven water zinc sulfate was prepared. The ZnO + - H2SO4 - ZnSO4 + H2O

Specification:
Item Standard
Crystals Crystals
Zn 21% MIN 20-22% MIN
As 5ppm MAX 5ppm MAX
Cd 20ppm MAX 20ppm MAX
Heavy Metal(Pb) 10ppm MAX 10ppm MAX
Water Insoluble Matter 0.05% MAX 0.05% MAX
PH Value 6-8 6-8
Fineness 10-20 mesh 10-20 mesh

 

 

Feature and Advantages:

We will packed in the woven bag lined with plastic, net wt. 25kgs or 1000kgs bags or customized.

We will arrange the shipment within 20days after received your order.

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Contact Details
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Phone Number : 86-13027429383