十二烷基本磺酸钠对2-(2-苯骈噻唑偶氮)-5-二甲氨基苯甲酸与镍反应影响的研究  

Study on Reaction Mechanism of Nickel with BTAMB in the Presence of SDBS

作　　者：戚文彬[1] 王耕[1] 

机构地区：[1]杭州大学化学系

出　　处：《杭州大学学报（自然科学版）》1990年第1期62-67,共6页Journal of Hangzhou University Natural Science Edition

基　　金：国家自然科学基金

摘　　要：本文利用超过滤法研究了Ni(Ⅱ)-BTAMB-SDBS体系的热力学性质,同时利用光度法研究了体系的动力学性质,讨论了表面活性剂与各组份之间的作用情况,结果表明,胶束对显色反应的“催化”作用,实质上是由胶束对过量试剂的“富集”作用引起,BTAMB几乎不被SDBS富集,故体系中观察不到这种催化作用,并且在通常所涉及的表面活性剂用量范围内,不存在过量胶束使显色体系腿色的效应,这与通常的表面活性剂增敏体系相比,有其特殊之处.In this paper, we use the ultrafiltration method to study the thermo-dynamic property and the spectrophotometric method to study the dynamic property of the color system of NNi(II)-BTAMB-SDBS. The interaciton between surfactants and reactants and products formed in the reaction are also studied. From the data we obtained, we can conclude that the 'catalysis effect' of the surfactants on the color reaction is caused by an enriched effect of the surfactant micelles on the excess reagents in the reaction. In the system we studied, BTAMB is not enriched by SDBS, hence no 'catalysis effect' could be f皍nd in the reaction.

关 键 词：表面活性剂 SDBS BTAMB 镍 富集 

分 类 号：O657.3[理学—分析化学]