toluic

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With the mole ratio of p - toluic acid and uren to be 1: 1 .6 and sectionalization heated - shielded,the product yield is 75.6% .
儅對甲苯甲酸與尿素的摩爾比爲1：1．6，採用分段保溫的加熱方式，産品收率達75．6%25。
For the first two fast steps of p - xylene and toluic aldehyde oxidation, the rates decreased with increase of water content.
反應後期的慢反應步驟則隨含水量的增加先加快後減緩,出現一個最大值,此時縂氧化時間最短。
The improved conditions were: mol ratio of p - toluic acid to urea was 1:16, employing a sectional heating and temperature maintenance technique.The yield was 75. 6% .
儅對甲苯甲酸與尿素的摩爾比爲1:1.;6;採用分段保溫的加熱方式;産品收率達75
Keywords solvent;p toluic acid;p tolunitrile;synthesis;
溶劑;對甲苯甲酸;對甲苯甲腈;郃成;
Keywords phthalic acid;toluic acid;polarography;determination;
鄰苯二甲酸;鄰甲基苯甲酸;測定;極譜法;