CAS No.: | 7757-83-7 |
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Formula: | Na2so3 |
Certification: | CCIC, CIQ, RoHS, ISO |
Purity: | ≥99% |
Type: | Sodium Sulfate |
Appearance: | Powder |
Samples: |
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ITEMS | Premium grade | ||
Super grade | First grade | Salable product | |
Sodium sulfite ( Na2SO3 ) , % ≥ | 97.0 | 96.0 | 95.0 |
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 | / | / |
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