sodium sulphite anhydrous
Minimum Order: 0
Quality/Safety Certification: 0.00
we are the larger factory for sodium sulphite anhydros which is used in paper making
the purity is 96% or 98%min
Product name: Sodium Sulfite Anhydrous, Sodium Sulphite Anhydrous
Molecular formula : Na2SO3
Appearance : white crystalline powder
Quality standard: HG/T 29672000
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 | / | / | / |
Packing: double-layer plastic woven bag.
Uses : used in papermaking, leather, printing, dyeing, bleaching and food .
