: a salt of hydrosulfurous acid especially : sodium hydrosulfite —not used scientifically.

What is another name for sodium hydrosulphite?

Sodium dithionite (also known as sodium hydrosulfite) is a white crystalline powder with a weak sulfurous odor.

What is the use of sodium hydrosulphite?

SRI. Oxygen scavenger for synthetic rubbers; vat dyeing of fibers and textiles; stripping agent for dyes; reagent; bleaching of sugar, soap, oils, and groundwood.