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: | 7757-83-7,Na2SO3 Anhydrous Sodium Sulfite,Industrial Anhydrous Sodium Sulphite |
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
|
|
Storage
Sodium sulfite should be stored in a dry and cool place.
Package
Sodium sulfite is packed in net weight 25kg plastic woven bag with plastic inner bag.
25tons/20'FCL.