sodium sulphite

manufacture Anhydrous Sodium Sulfite 97% Appearance: white crystal powder CAS NO.: 7757-83-7 Packing: 25kg/bag with 3 layers PP+PE,25tons/20"GP without pallets and 22tons/20"GP with pallets. USe: Paper, chemical mechanical pulp, water treatment, dye intermediates, fabric bleach, photographic imaging, artificial silk, leather, corrosion, stone carving, pharmaceutical synthesis, latex processing, mirror silvering, thiosulfate preparation and analysis of chemical reagents and so on. Anhydrous Sodium Sulfite specification: ITEM AND RESULT ITEMS STANDARD RESULTS Na2So3 % ≥97.00% 97.09% FE% ≤0.003% 0.0025% Insoluble solid in water% ≤0.02% 0.01% Na2Co3% ≤0.1% 0.10% Na2So4% ≤2.5% 2.5% NaCl% ≤0.1% 0.1%
Printing and dyeing industry