Question

Which chemical is ued for dechlorination of water??

Answer 1

sulphur dioxide is the most common chemical used for dechlorination of water,but hydrogen peroxide and sodium metabisulphate are also used.
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Answer 2

Sulfur dioxide

Sulfur dioxide is most commonly used for dechlorination and is the major focus of this fact sheet. Some dechlorination alternatives include carbon adsorption, sodium metabisulfite, sodium bisulfite, and hydrogen peroxide.