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Organic Intermediate/Raw materials

Sodium bisulfite CAS 7631-90-5

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Product Details

Chemical Name:Sodium bisulfite

Synonyms:Monosodium sulfite; Sodium hydrogen sulfite

Molecular Structure:

Product Typical Properties

Items Specification
Cas no 7631-90-5
Molecular formula HNaO3S
Molecular weight 104.06
Einecs 231-548-0
Appearance White powder
Content 99%



Reducing bleach. It has a bleaching effect on food and a strong inhibitory effect on the oxidase in plant-based foods. According to Chinese regulations, it can be used for candied fruits, glucose, sugar, rock sugar, malt sugar, candy, liquid glucose, dried fruits, dried vegetables, vermicelli, bamboo shoots, mushrooms, and canned mushrooms, with a maximum usage of 0.45g/kg; It can also be used for potato starch, with a maximum usage of 0.2g/kg, and a residual amount of potato starch (calculated as SO2) less than 0.03g/kg.


Product Usage

  1. Industrial grade

Sodium bisulfite can be used as a reducing agent in industries such as dyeing, papermaking, leather making, and chemical synthesis for the bleaching of cotton and organic fabrics,


  1. Pharmaceutical industry

Intermediates used in the production of analgin and aminopyrine,


  1. Edible grade

The product is used as a bleach, preservative, and antioxidant.


Product Packaging



Product Storage

Please store in a dry, cool and dark place


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