赤外線吸収スペクトルによる分溜キシリジンの分析

概要

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In order to clarify the constituents of xylidine fraction of coal tar base heretofore unknown, products of xylidine fraction from Nihon Kokan Company. were tested for infrared absorption spectrum combined with 'chemical supplementary means to obtain the following results: (1). The xylidine fraction showed to contain about 30% tar acid and tertiary base, and the tar acid was composed mainly of phenol. (2). Analysis of refined xylidine, after removal of tar acid and tertiary base, showed to contain all 6 isomers. The result of analysis of 4 kinds of representative samples showed to contain 3340% 1, 3, 5-isomer, 1821% 1, 3, 4-isomer, 1218% 1, 2, 3-isomer, 1317% 1, 2, 4-isomer, 1113% 1, 4, 2-isomer, and 03% 1, 3, 2-isomer. Quantitative analysis of 8 kinds of standard samples containing, mixtures of 6 isomers were made and found that the maximum standard deviation was 2%.
社団法人日本分析化学会の論文