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98% 96% Na2SO3 Sodium Sulfite Anhydrous 7757-83-7

Basic Information
Place of Origin: Chinia
Brand Name: Hengchang
Certification: ISO
Model Number: SM
Minimum Order Quantity: 5 ton
Price: Negotiation
Packaging Details: 25kgs/bag,500kgs/bag,1000kgs/bag
Delivery Time: 10-15 days after your deposit.
Payment Terms: L/C, T/T, Western Union, MoneyGram
Detail Information
Application: Dyeing And Printing Industry Etc. MF: Na2O3S
CAS: 7757-83-7 Other Name: Sodium Sulphite
Solubility: Soluble In Water,Insoluble In Ethanol, Etc Grade Standard: Industrial And Food And Pharmaceutical Grade
High Light:

98% Sodium Sulfite Anhydrous

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7757-83-7


Product Description

Food Na2SO3 Sodium Sulfite Anhydrous 98%,96% Sodium Sulphite,New Tech Sodium Sulfite Price
Sodium sulfate:Sodium sulfate anhyfrous
Other name: anhydrous glauber, anhydrous sodium sulfate
Chemical formula: Na2SO4
Molecular weight: 142.04
CAS number: 7757-82-6
EINECS login number | : 231-820-9
Melting point: 884 ℃
Boiling point: 1404 ℃
Water soluble: soluble in water
Secret: 2.68
Outlook: colorless transparent crystal
Property: white gravel or powder crystal,relative density is 1.561, less to dissolve in water and its water solution has alkaline reaction; it is hard to dissolve in ethanol. It is used to produce chloroform,solasulfone and Benzaldehyde in medical industry.
Molecular Formula : Na2SO3
Molecule Weight : 126.04
CAS NO .: 7757-83-7
Appearance : White Free Flowing Fine Crystal or Powder
Specification for Industry Grade and Food Grade :
Item
Quality Index
Industry Grade
Food Grade
Purity ( As Na2SO3)
96.0% min
98.0% min
Sodium sulphate ( SO4)
2.5% max
1.5% max
Chlorides ( As NaCL)
0.5% max
0.1% max
Arsenic ( As )
-
0.0002% max
Heavy metals ( As Pb )
-
0.0005% max
Iron (Fe)
0.005% max
0.002% max
Water insolubles
0.05% max
0.02% max
 
Specification For Photo Grade and Pharmaceutical Grade
Item
Quality Index
Photo Grade
Pharmaceutical Grade
Purity ( As Na2SO3)
98.0% min
98.0% min
Sodium sulphate ( SO4 )
1.5% max
1.5% max
Chlorides ( As CL-)
0.05% max
0.05% max
Arsenic ( As )
0.0002% max
2ppm max
Lead ( As Pb)
0.0005% max
2ppm max
Iron (Fe)
0.001% max
5ppm max
Selenium ( Se)
0.0001% max
1ppm max
Zinc ( Zn)
0.0001% max
 

FAQ

1. What's your payment terms?
T/T or L/C.
2. When will I get reply?
We ensure you fast response, fast service .Emails will be replied in 24 hours,your questions will be answered in time.
3. How about the packing?
Usually we provide the packing as 25 kg / bag, Chemland branded or neutral packing.
4. What documents you provide?
Usually, we provide Commerical Invoice, Packing List, Bill of loading and COA.

Contact Details
vivian

WhatsApp : +008615063431351