2,4-二磺酸基苯甲醛含量的测定  

Determination of 4-Formylbenzene-1,3-disulfonic Acid

作　　者：吴平 

机构地区：[1]金华恒利康化工有限公司,金华321083

出　　处：《染料与染色》2012年第5期51-53,共3页Dyestuffs and Coloration

摘　　要：本文介绍了一种测定2,4-二磺酸基苯甲醛含量的方法。2,4-二磺酸基苯甲醛与亚硫酸氢钠加成反应生成4-(羟基磺酸基甲基)苯-1,3-二磺酸,再与碳酸氢钠共热释放出亚硫酸氢钠,然后用碘量法测亚硫酸氢钠含量,从而分析2,4-二磺酸基苯甲醛的含量。Determination of 4-formylbenzene-1,3-disulfonic acid was introduced.4-(Hydroxy(sulfo)methyl)benzene-1,3-disulfonic acid was formed from 4-formylbenzene-1,3-disulfonic acid and sodium bisulfite by addition reaction,and sodium bisulfite was released by heating 4-(hydroxy(sulfo)methyl)benzene-1,3-disulfonic acid and sodium bicarbonate,then the content of 4-formylbenzene-1,3-disulfonic acid was obtained by determining sodium bisulfite with iodometry.

关 键 词：2 4-二磺酸基苯甲醛 亚硫酸氢钠 加成反应 碘量法 分析 

分 类 号：TQ247.5[化学工程—有机化工]