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用半微量相平衡方法研究了ＬａＣｌ３３Ｈ２Ｏ－１８Ｃ６－ＣＨ３ＣＯＣＨ３三元体系在２５℃时的溶解度，并测定了各饱和溶液的折光率。其结果表明，该体系中形成两种化学计量的配合物：２ＬａＣｌ３１８Ｃ６６Ｈ２ＯＣＨ３ＣＯＣＨ３与ＬａＣｌ３１８Ｃ６３Ｈ２Ｏ０．５ＣＨ３ＣＯＣＨ３。制备了固态配合物，用化学分析，ＩＲ，ＴＧ－ＤＴＧ和ＤＳＣ研究了配合物的组成和性质。
The solubility of LaCl33H2O-18C6-CH3COCH3 ternary system at 25 ℃ was studied by semi-micro phase equilibrium method and the refractive index of each saturated solution was measured. The results showed that two stoichiometric complexes were formed in this system: 2LaCl318C66H2OCH3COCH3 and LaCl318C63H2O0.5CH3COCH3. Solid complexes were prepared and their chemical compositions, IR, TG-DTG and DSC were used to study the composition and properties of the complexes.