CAS No.: | 7772-98-7 |
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Formula: | Na2s2o3/Na2s2o3 5H2O |
EINECS: | 231-867-5 |
Purity: | ≥99% |
Type: | Sodium Hyposulfite |
Appearance: | Granular |
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Subjects | Standard | Result |
Na2S2O3.5H2O % | ≥ 99 | 99.20 |
Water insoluble % | ≤ 0.03 | 0.02 |
Na2S % | ≤ 0.003 | 0.001 |
NaCl % | ≤ 0.20 | 0.11 |
PH (200g/L) | 6.5 - 9.5 | 8.1 |
Appearance | White Crystalline |
1.The photographic industry is used as a photographic fixer.
2.The paper industry is used as a ch lorine removal agent after pulp bleaching.
3.The printing and dyeing industry is used as a dechlorination agent for bleaching of cotton fabrics.
4.Analytical chemistry is used as a reagent for chromatography and capacity analysis.
5.Agent, disinfectant.
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