| CAS No.: | 7757-83-7 |
|---|---|
| Formula: | Na2so3 |
| EINECS: | 231-821-4 |
|
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is mainly used as reduction agent. Furthermore, it is ideal for the bleaching of vegetable fibers and textile, for the production of solutions, which are used in the developing of photos and films as well as for the treatment of tanning agents in dyeing of textiles. ChoiceChem offers different sodium metabisulfite grades, all meeting highest quality standards.
Product Information
|
CAS RN.: |
7681-57-4 |
|
EINECS: |
231-673-0 |
|
H.S.CODE: |
2832.1000.00 |
Chemical Analysis
|
Component |
Industrial Grade |
Food Grade |
High Purity Grade |
|
Appearance |
White or yellowish crystalline powder |
||
|
Assay(Na2S2O5 ) |
96.5%min |
97%min |
98%min |
|
water insoluble matter |
0.05%max |
0.03%max |
0.02%max |
|
Iron content(Fe) |
0.005%max |
0.003%max |
0.002%max |
|
(As) |
0.0001%max |
0.0001%max |
0.0001%max |
|
Pb |
0.0005%max |
0.0005%max |
0.0003%max |
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