- any organic chemical compound containing the monovalent radical CS·OH
- any of a group of acids with the general formula HSO, in which n varies from 2 to 6
(plural thionic acids)
- (inorganic chemistry) Any oxyacid of sulfur of the form H2SnO6 (examples are known having n from 2 to 6)
- (organic chemistry) Any thiocarboxylic acid
How would you define thionic acid? Add your definition here.
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