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Sodium Sulphite
In chemistry, sodium sulphite is a soluble compound of sodium. Its chemical formula is Na2SO3. It has a molecular weight of 126.04. It is a product of SO2 scrubbing, a part of the flue gas desulphurisation process. It is also used as a preservative to prevent dried fruit from discoloring, and for preserving meats, and is used in the same way as sodium thiosulphate to convert elemental halides to their respective acids, in photography and for reducing chlorine levels in pools.
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