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Product Uses. Sodium bisulfite solution is used in many industries; for example, in the treatment of waste water, in the pulp and paper industry, in the photographic industry and in various other industries as a bleach or dechlorinator. Sodium bisulfite solution can also be used in the manufacture of other chemicals. E222 (food industry). Product Overview. Sodium bisulfite solution is a variously colored liquid at room temperature. It is used in waste water treatment, in the pulp and paper industry, in the photographic industry and in various other industries as a bleach or dechlorinator.
Chemically, sodium bisulfite is a combination of sodium, hydrogen, sulfur and oxygen. It is also called sodium hydrogen sulfate, and is classed as a sulfite, or sulfur-based chemical. Its natural form is a white crystalline powder, but turns yellow in solution.t's sodium, but not saltâit's a food additive, and it is considered more sulfur than sodium. It has a variety of industrial applications, but it is also a popular preservative and bleaching agent in the manufacture of processed foods.