безводного сульфита натрия

Commodity: sodium sulfite anhydrous Molecular weight: 126.04 Molecular formula: Na2SO3 General characteristics: white crystal or crystalline power, it is alkali in water,PH is 9.When it is 33.4,it is solubility and is about 28%.It is oxidized sodium sulhate when it meets air. Standard specification : Industrial sodium sulfite anhydrous accord with the standard of GB9005-2000. Type name Best First compiled Appearance White crystalline powder White crystalline powder White crystalline powder Purity % ≥97 ≥96 ≥93 Iron(Fe) % ≤0.003 ≤0.005 ≤0.01 Water infusibility % ≤0.02 ≤0.03 ≤0.05 Educt alkali % ≤0.1 ≤0.40 ≤0.60 Sodium sulfite % ≤2.5 ----- ----- Sodium chloride % ≤0.1 ------ ----- Application:this product is used as the reducer of coloring matter and chemical industriies,printing and dyeingindustries,medicine,paer making industries and food fresh. Packing:in net 50kg plasitic wevon bag with inner bag.