dithizone

noun

di·​thi·​zone

dīˈthīˌzōn

plural -s

: a bluish black crystalline compound C₆H₅N=NCSNHNHC₆H₅ used for the colorimetric determination of heavy metals (as lead)

called also diphenylthiocarbazone

Word History

Etymology

diphenylthiocarbazone

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