新显色剂DMTAM的合成及显色性能研究

Chromogcnic property and synthesis of the new reagent DMTAM

报道新显色剂2—(4,5—二甲基—2—噻唑偶氮)—5—二甲氨基酚(简称DMTAM)的合成方法和结构鉴定结果。对其溶解性,在可见光区的吸收性以及与常见金属离子的显色性能进行了试验。结果表明:DMTAM易溶于多种有机溶剂且能被各类表面活性剂增溶,DMTAM具有良好的金属生色性,与Cu^(2+)、CO^(2+)、Ni^(2+)、pd^(2+)、Zn^(2+)、Bi^(3+)等形成灵敏稳定的配合物,可用作金属指示剂和光度分析显色剂。

Synthesizing method of the new reagent 5-dimethylamino-2-(4, 5-dimethyl-2-thiazolylazo) phenol (DMTAM) is reported. Some analytic properties of the reagent has gone through a preliminary test, also its chromogenic reactiong with metal ions and application in analytic chemistry is investigated.