取相应的稀土氯化物(99.9％的稀土氧化物用盐酸溶解制得)和苯丙砜(市售苯丙砜以少量水溶解后用丙酮析出纯化)按一定反应比分别溶于甲醇中,在搅拌下混合,立即产生白色絮状沉淀,放置三小时以上,抽滤,用甲醇洗涤,75℃左右常压烘干,置P_2O_5干燥器中干燥至恒重。 1.配合物的组成与性质 稀土含量用标准EDTA溶液滴定,苯丙砜含量用NaNO_2 Take the corresponding rare earth chloride (99.9% rare earth oxide dissolved in hydrochloric acid solution) and phenylpropyl sulfone (commercially available phenylpropane sulfone with a small amount of water dissolved in acetone precipitated) by a certain reaction were dissolved in methanol, in Mix with stirring, immediately produce white flocculent precipitate, place more than three hours, suction filtered, washed with methanol, about atmospheric pressure drying 75 ℃, set P_2O_5 dryer to constant weight. 1. The composition and properties of complexes Rare earth content with standard EDTA titration, phenylpropyl sulfone content with NaNO_2