tolidine

[ tol-i-deen, -din ]

noun

, Chemistry.

1. any of several isomeric derivatives of biphenyl containing two methyl and two amino groups, especially the ortho isomer that is used as a reagent and in the preparation of dyes.

tolidine

/ ˈtɒlɪˌdiːn /

noun

1. any of several isomeric compounds, esp the ortho- isomer, which is a white or reddish crystalline substance used in the manufacture of dyes and resins. Formula: (C 6 H 3 NH 2 CH 3 ) 2

Word History and Origins

Origin of tolidine¹

First recorded in 1895–1900; tol(uene) + -id ³ + -ine ²

Word History and Origins

Origin of tolidine¹

C19: from tol ( uene ) + -id ³ + -ine ²

Example Sentences

Thus diazotised benzidine and tolidine combine with salicylic acid to form valuable yellow azo-dyes known as “chrysamines.”

From Project Gutenberg

Ellms and Hauser investigated benzidine in 1913 and found it to be inferior to o-tolidine as a test reagent for free chlorine.

From Project Gutenberg

It is impossible to attempt to specify by name any of these recent benzidine and tolidine dyes.

From Project Gutenberg