pyrosulphuric acid


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pyrosulphuric acid

(ˌpaɪrəʊsʌlˈfjʊərɪk)
n
(Elements & Compounds) a fuming liquid acid made by adding sulphur trioxide to concentrated sulphuric acid. Formula: H2S2O7. Also called: disulphuric acid See also fuming sulphuric acid