Specification of Sodium Sulphite 96% Ex China
Sodium sulfite is mainly used in the pulp and paper industry, to treat water fed to steam boilers to avoid corrosion problems, in the photographic industry to protect developer solutions from oxidation and (as a hypo-clear solution) for cleaning the fixer (sodium thiosulphate) of film emulsions and photo-paper, in the textile industry as a bleaching, desulfurizing and dechlorinating agent and in the leather trade for the sulfonation of tanning extracts. It is used in chemical manufacture as a sulfonating and sulfomethylating agent. It is used in the production of sodium thiosulfate. It is used in other applications, including ore froth flotation, oil recovery, food preservation, and making dyes