【摘要】 本文介绍稀土镱（Ⅲ）和邻苯二甲酰异羟肟酸（ＯＰＨＡ）在弱酸性介质中合成配合物的方法。通过元素分析、红外光谐、热重分析、Ｘ－射线粉末衍射及摩尔电导率确定了该配合物的组成及性质；而且用ｐＨ滴定法求得配合物的逐级稳定常数是Ｋ１＝２．２７×１０８和Ｋ２＝２．８６４×ｌ０４。更多还原

【Abstract】 This paper describes a method of forming the complex by reacting ytterbium(Ⅲ) with O-Phthaloylhydroxamic acid(OPHA) in slight acid medium. The composition and properties of the complex have been determined by elementary analysis, infrared spectra, thermogravimetric analysis, X- ray powder diffraction and molar conductance. Furthermore, their stepwise stability constants have been found to be K1= 2.27 ×108 and K2=2.864×104 by pH titrimetry.更多还原