Surat Chemical industry Based in Surat India. Surat chemical are a leading Sodium dithionite Manufacturer, Exporter, Distributor and Supplier in Surat India . We are supplied into various industrial markets including Household , Institutional Cleaning, Personal Care and Industrial sectors including Oil Field, Agriculture, Lubricants, Metal Working chemical industry and Coatings markets.
Sodium dithionite is a white crystalline powder with a weak sulfurous odor. Although it is stable in the absence of air, it decomposes in hot water and in acid solutions.
Applications
This compound is a water-soluble salt, and can be used as a reducing agent in aqueous solutions. It is used as such in some industrial dyeing processes, primarily those involving sulfur dyes and vat dyes, where an otherwise water-insoluble dye can be reduced into a water-soluble alkali metal salt indigo dye). The reduction properties of sodium dithionite also eliminate excess dye, residual oxide, and unintended pigments, thereby improving overall colour quality.
Sodium dithionite can also be used for water treatment, gas purification, cleaning, and stripping. It can also be used in industrial processes as a sulfonating agent or a sodium ion source. In addition to the textile industry, this compound is used in industries concerned with leather, foods, polymers, photography, and many others.
It can be used as a developer, but it is a very uncommon choice. It is prone to reduce film speed and, if improperly used, quickly fogs the image.
Aqueous solutions of sodium dithionite were once used to produce “Fieser’s solution’ for the removal of oxygen from a gas stream.
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