English

Alternative forms

• thiosulphuric acid (mainly UK)

Noun

thiosulfuric acid ‎(uncountable)

1. (inorganic chemistry) An unstable acid, H₂S₂O₃, formally derived from sulfuric acid by the substitution of a sulfur atom in the place of an oxygen one; it is known only in solution or as its salts and esters, the thiosulfates.

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