Anhydrous sodium sulfite
Anhydrous sodium sulfite
CAS No.: 7757-83-7
[Molecular weight] 126. 04
Standard: HG/T2967-2000
Property:white crystal or crystalline powder.
Specification
| ITEM |
SUPER |
FIRST |
QUALIFIED |
|
PURITY (Na2SO3) |
97.0%MIN. |
96% MIN. |
. 93.0%MIN. |
|
Fe |
0.003%MAX. |
0.005%MAX. |
0.02%max |
|
WATER INSOLUBLES |
0.02%MAX |
0.03% MAX. |
0.05%MAX. |
|
FREE ALKAL |
0.10%MAX |
. 0.40% MAX. |
0.60%MAX. |
|
NaCL |
0.10%MAX. |
- |
- |
|
Na2SO4 |
2.5%MAX. |
- |
- |
Packing: PACKED IN 25KG NET PLASTIC WOVEN BAG.
USE:
It is Used as a desoxydating or bleaching agent for printing and dyeing industry. As a developer for photographic industry. As a lignin-removing agent for paper industry. As a stabilizer for syntheticfiber for textile industry. As a reducing agent for chemical industry, or for electroplanting industry etc.
Feature:
Sodium sulfite (sodium sulphite) is a soluble compound of sodium. It is a product of SO2 scrubbing, a part of the flue gas desulfurization process. It is also used as a preservative to prevent dried fruit from discoloring, and for preserving meats, and is used in the same way as sodium thiosulfate to convert elemental halides to their respective acids, in photography and for reducing chlorine levels in pools