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.
出处
《染料与染色》
CAS
2012年第5期51-53,共3页
Dyestuffs and Coloration
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
4-formylbenzene-1,3-disulfonic acid
sodium bisulfite
addition reaction
iodometry
analysis
