| 释义 |
tolidine Chem.|ˈtɒlɪdiːn|
[f. tolyl + benzidine.]
A benzidine derivative, (NH2(CH3)C6H3{b1})2, which is the parent compound of a group of azo dyes and is used (in the ortho form) as a reagent in chemical analysis.
1879Jrnl. Chem. Soc. XXXVI. 235 (heading) The three isomeric tolidines (diamido-ditolyls). 1935Discovery July 208/1 A minute sample of the bath water is taken and ‘doped’ by the mixture of few drops of ‘O.T.’ (Ortho-Tolidine), a chemical which turns chlorinated water yellow. 1964Kirk-Othmer Encycl. Chem. Technol. (ed. 2) III. 414 o-Tolidine is used to a rather large extent in qualitative and quantitative analysis. It is employed for the detection..of such substances as chlorine..gold..and tungsten. Ibid. 415 Azo dyes prepared from m-tolidine..have little affinity for cotton, but are interesting dyes for wool. |