tolidine

[ tol-i-deen, -din ]

nounChemistry.

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.

Origin of tolidine

First recorded in 1895–1900; tol(uene) + -id³ + -ine²

Words Nearby tolidine

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use tolidine in a sentence

Thus diazotised benzidine and tolidine combine with salicylic acid to form valuable yellow azo-dyes known as “chrysamines.”
Coal | Raphael Meldola
Ellms and Hauser investigated benzidine in 1913 and found it to be inferior to o-tolidine as a test reagent for free chlorine.
Chlorination of Water | Joseph Race
It is impossible to attempt to specify by name any of these recent benzidine and tolidine dyes.
Coal | Raphael Meldola

British Dictionary definitions for tolidine

tolidine

/ (ˈtɒlɪˌdiːn) /

noun

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

Origin of tolidine

C19: from tol (uene) + -id ³ + -ine ²

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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