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molecular formula：Na2S2O5
formula weight：190.09
Usage: Used as a condiment, salt, reductant, rubber concreting, also used in organic synthesis, pharmaceutical and spices, etc
Printing and dyeing mordants; After the fabric floats dechlorinating agent; Chemical medicine with a reducing agent and sulfonating agent; Bamboo wood paper fiber bleach; Non-ferrous metal ore dressing agent; Waste water treatment agent; Rubber curing agent; Spices flavoring and alkyl aldehyde industry; Leather industry as depilatory softener and wear-resisting agent; Photographic industry as a developer of reductant fixing bath components, etc
