【摘要】 对邻苯二酚、邻苯二酚３，５二磺酸钠、连苯三酚、３，４二羟基苯甲酸及３，４，５三羟基苯甲酸等系列邻苯二酚衍生物和Ｃｅ３＋生成紫红色配合物的反应进行了研究，结果表明，该显色反应是因Ｃｅ３＋配合物被氧化成了Ｃｅ４＋配合物；提出了Ｃｅ３＋与这类试剂氧化显色反应的机理并对其进行了验证实验。更多还原

【Abstract】 It was found that the colourless complexes of Ce 3+ with catechol derivatives can be oxidized to purple Ce 4+ coordination compounds in the air. In this paper, the colouring reason and mechanism of the oxidation reaction of Ce 3+ complexes in the air have been studied. The study shows that Ce ion is transformed into Ce 4+ hydroxy compound by oxygen of air in weak basic condition, and the Ce 4+ hydroxy compound oxidizes the anion complexes of Ce 3+ with catechol derivatives to radical intermediates, then the intermediates become the purple Ce 4+ complexes.更多还原