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铬天青B(Chromazurol B,即Ammonium-2″,6″-dichloro-4′-hydroxy-3,3′-dimethylfuchsone-5,5′-dicarboxylate)是媒染蓝I(Mordant Blue 1,Colour Index 43830)的铵盐形式,它与光度分析中常用的显色剂铬天青S(CAS)、埃铬青R(ECR)结构相似,都属于酚羧酸三苯甲烷染料。近年来,铬天青B越来越多地被应用于某些金属离子的胶束增溶显色反应中,郑用熙等对此曾作过详细介绍。本文研究了铬天青B(以下简称CAB)的基本光度性质,探讨了在甜菜碱型两性表面活性剂的存在下,它与镓的反应行为。结果表明,
Chromazurol B (Ammonium-2 “, 6” -dichloro-4’-hydroxy-3,3’-dimethylfuchsone-5,5’-dicarboxylate) is Mordant Blue 1 (Color Index 43830 ) Of the ammonium salt form, which is commonly used in photometric analysis Chromium Azurol S (CAS), Ai Chromium Qing R (ECR) structure similar to the phenolic carboxylic acid triphenylmethane dye. In recent years, chrome azure B is more and more applied to the micellar solubilization of some metal ions color reaction, Zheng Yong Xi et al made a detailed introduction. In this paper, the basic photometric properties of chrome azure B (hereinafter referred to as CAB) were studied, and its reaction with gallium in the presence of betaine amphoteric surfactants was discussed. The results show,