2－（2－噻唑偶氮）－5－［（N，N－二羧基甲基）氨基］．苯甲酸的合成及其光度特性的研究  

Study on synthesis of 2-(2-thiazolylazo)5-[(N, N-dicarboxymethyl) amino]benzoic acid and its photometric ckaracterization

作　　者：王莉红[1] 汤福隆[1] 毛雪琴[1] 

机构地区：[1]杭州大学环境科学系

出　　处：《化学试剂》1995年第5期265-268,共4页Chemical Reagents

基　　金：浙江省测试基金

摘　　要：合成了一种新的水溶性显色剂２－２－噻唑偶氮）－５－［（Ｎ，Ｎ－二羧基甲基）氨基］苯甲酸（ＴＡＤＣＡＢ）。试验了试剂与２９种金属离子的显色反应，其中１１种离子能显色；同时测定了试剂的离解常数、试剂与ＣＯ２＋、Ｃｏ２＋、Ｎｉ２＋、Ｐｄ２＋、Ｖ（Ｖ）络合物的络合比、稳定常数和摩尔吸光系数等特性数据。In this paper, the synthesis of a new reagent,2-(2-thiazolylazo) -5-[(N, N-dicarboxymethyl) amino]benzoic acid (TADCAB) is reported. Through colortests of TADCAB witl twenty-nine kinds ofmetal ions, it was found that 11 metal ions couldgive color reactions. Then some analytical properties,including acid dissociation constants of TADCAB,composition ratios of TADCAB to on(Ⅱ), Co(Ⅱ),Ni(Ⅱ), V(V), Pd(Ⅱ), stability constants of thesecomplexes and apparent molar absorptivities werestudied.

关 键 词：合成 TADCAB 光度法 铜 钴 镍 钯 钒 

分 类 号：O657.32[理学—分析化学] O626.25[理学—化学]