Basic parameters

Detailed description

Molecular formula: Na2SO3
Main physical and chemical properties: White crystal or powder; crystal form; triangular prism; its aqueous solution is alkaline, with a pH value of about 9-9. At 33.4℃, the maximum solubility is about 28%, and it will be oxidized into contact with air Sodium sulfate is decomposed into sodium sulfide when it meets high temperature. Density is 2.633 (15.4℃), refractive index is 1.565, and molecular weight is 126.04.
Performance standards: GB9005-88
Appearance white crystalline powder
containing an amount of ≥ 96% ≤ 0.005% Fe ≤ 0.003% water insoluble free base 0.40% ≤
Uses: printing industry as a deoxidizer and bleach, for a variety of cotton fabric scouring, It can prevent local oxidation of cotton fiber and affect fiber strength. The photosensitive industry is used as a developer, and the organic industry is used as a reducing agent in the production of m-phenylenediamine, 25-diazolone, aminosalicylic acid, etc. Used as man-made fiber and stabilizer in textile industry. It is also used in papermaking, electronics, water treatment and other industries.