93% Ready for shipment for paper use, waste water treatment, bleaching and tanning sodium sulfite CAS NO.7757-83-7

Product description:

Standard: Industrial grade;

MF:Na2SO3 CAS:7757-83-7 Purity:93%

Package:compound plastic woven bag with polyethylene liner or customized

Basic properties:Common sulfite, colorless, monoclinic crystal or powder. It has an irritating effect on eyes, skin and mucous membranes and can pollute water sources. Decomposition by high heat produces toxic sulfide fumes. In industry, it is mainly used for the production of cellulose sulfite, sodium thiosulfate, organic chemicals, bleached fabrics, etc. It is also used as a reducing agent, preservative, and dechlorinating agent.

 

Application:

(1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry. (2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as antifermentative. In starch and sweeteners production as bacteriostatic. (3) Photo Grade: In the photographic industry as component of developer bath. (4) Pharmaceutical Grade : pharmaceutical industry for the production of chloroform, benzene and formaldehyde phenylpropanoid Sulfone