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Sodium sulfite anhydrous 70%~80%,92%,96%,97% 2% discount price COA and MSDS
Sodium sulfite anhydrous
Molecular formula : Na2SO3
Appearance : white crystalline powder
Sepcification:
Index name | Premium grade | |||
Super grade | First grade | Salable product | Industrial grade | |
Sodium sulfite ( Na2SO3 ) , % ≥ | 97.0 | 96.0 | 93.0 | 90.0 |
Fe , ≤ | 0.003 | 0.005 | 0.01 | / |
Water insoluble matter , % ≤ | 0.02 | 0.03 | 0.05 | / |
Free alkali ( as Na2SO3 ) , % ≤ | 0.10 | 0.40 | 0.60 | / |
Na2SO4 , % ≤ | 2.50 | / | / | / |
NaCl , % ≤ | 0.10 | / | / | / |
Usage
1, Paper-making industry
2, Leather industry
3, Bleaching
4, Tannage and food
5, Dyeing and painting industry
High quality sodium sulfite