Disulfite

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Notion

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Science and technology

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What Wikipedia says

A disulfite, commonly known as metabisulfite or pyrosulfite, is a chemical compound containing the ion S2O52−. It is a colorless dianion that is primarily marketed in the form of sodium metabisulfite or potassium metabisulfite. When dissolved in water, these salts release the hydrogensulfite HSO3− anion.

Excerpt from the Wikipedia article “Disulfite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NEUROtiker, Public domain, via Wikimedia Commons.