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Description:
1. Sodium Bisulfite CAS: 7631-90-5
2. Specification:
Items | Norms (industrial grade) | ||
Superior-grade | First-grade | Qualified-grade | |
Na2SO3 -content % ≥ | 97.0 | 96.0 | 93.0 |
Fe-content % ≤ | 0.003 | 0.005 | 0.02 |
Water-insoluble matter content % ≤ | 0.02 | 0.03 | 0.05 |
Free alkali as Nacontent % ≤ | 0.10 | 0.40 | 0.80 |
Na2SO4 -content % ≤ | 2.5 | ||
NaCL-content % ≤ | 0.10 |
3. Usage:
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 electroplating industry etc.
4. Package:
25kg in a bag, or as per your request.
Sodium Bisulfite Manufacture