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Definition 2024


sulfur_dioxide

sulfur dioxide

English

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Noun

sulfur dioxide (uncountable)

  1. (American, inorganic chemistry) A toxic gas, of molecular formula SO2 that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain.

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