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,7757-83-7 |
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
|
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.