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Model No. : | 002 |
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Brand Name : | SANXIANG |
Product description
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 | / | / | / |
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