新显色剂对乙酰基偶氮氯膦的纯化及试剂性能的研究

Study on the purification and properties of the new chromogenic reagent p-acetylchlorophosphonazo

提出了用滤纸吸附—正丁醇萃取法提纯对乙酰基偶氮氯膦的新方法。对试剂的质子化常数、离解常数进行了测定,还辅以量子化学手段对试剂在不同酸度下的存在构型及试剂性质做了解释。

In this paper,p-acetylchlorophosphonazo,anew chromogenic reagent for total rare earthswas purified by adsorption with filter paper andextraction with n-butanol.The protonation anddissociation constants have been determined.Theconfiguration and properties of the reagent atvarious acidities were explained by quantumchemistry.