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 (zī′lĭ-dēn′, -dĭn, zĭl′ĭ-)
1. Any of six toxic isomeric anilines, C8H11N, derived from xylene, used chiefly as dye intermediates.
2. Any of various mixtures of xylidine isomers.


(ˈzaɪlɪˌdiːn; -ˌdaɪn; ˈzɪlɪ-)
1. (Elements & Compounds) a mixture of six isomeric amines derived from xylene and used in dyes. Formula: (CH3)2C6H3NH2
2. (Elements & Compounds) any one of these isomers


(ˈzaɪ lɪˌdin, -dɪn, ˈzɪl ɪ-)

1. any of six xylene-derived isomeric compounds that have the formula C8H11N and resemble aniline: used in dye manufacture.
2. an oily liquid consisting of a mixture of certain of these compounds, used commercially in making dyes.
[1840–50; xyl (ene) + -idine]
References in periodicals archive ?
The reaction rate coefficients of 2,4-xylidine ozonation are not available in the literature.
2) is supposed to take place in the 2,4-xylidine degradation process; the first step for xylidine oxidation is probably just the formation of nitroaromatics.
The 98% pure 2,4-xylidine solution was obtained from MERCK-Schuchardt (Germany).
The liquid phase concentration of the 2,4-xylidine was measured inside the feed tank and at the outlet of the liquid.
The cold reactor was then charged with 100 g of 2,4-xylidine saturated wet GAC and 100 mL of residual liquid solution from adsorption experiments.
According to the results of photolysis research, oxidation of 2,4-xylidine requires a prohibitively long residence time to reach undetectable concentration levels.
Literature survey showed that no information is available on 2,4-xylidine adsorption isotherms and solid phase diffusion coefficient.
The 2,4-xylidine (TY 6-09-05-656-77) used in our experiments was from the Voikovo factory (Russia).
Analyses to determine the 2,4-xylidine concentration were in all experiments performed with an HP diode-array spectrophotometer at wavelengths between 284 and 288 nm.
The adsorption equilibrium experiments were carried out with various initial concentrations of 2,4-xylidine (100 to 310 mg/L) and GAC (0.

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