Product Description

Synonyms: sodium hydrogen sulfite, sodium acid sulfite, hydrogen sodium sulfite Molecular formula: NaHSO3 CAS No: ********5 Appearance: white powder Product Specification: *6% Grade *3%Grade Na2SO3 *6% *3% Free alkali 0.4% 0.4% Iron(Fe) **0ppm **0ppm water insolubles 0.*5% 0.*5% Packing:*5kgs/bag. Use: The pharmaceutical industry for the production of chloroform, formaldehyde and benzene styrene sulfone. Industrial rubber coagulant to do. For cotton printing and dyeing industry antichlor after bleaching, cotton scouring agent. Treatment for the leather tanning industry to make the leather soft, plump, tenacious, with a waterproof, bending, wear-resistant properties. The chemical industry for the production of vanillin hydroxy, such as hydroxylamine hydrochloride. Used as a reagent, such as photographic industry. The food industry for bleaching agents, preservatives, osteoporosis agents, antioxidants, preservative agents and color!