tolidine

[ tol-i-deen, -din ]

nounChemistry.
  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.

Origin of tolidine

1
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
  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

Origin of tolidine

1
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