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用半微量相平衡法研究了RE(NO3 ) 3 His H2 O(RE =Sm ,Gd ,Er)在 2 5℃及全浓度范围内的溶度性质 .结果表明每个体系中分别形成两种不同摩尔比的配合物 :RE(His) (NO3 ) 3 ·H2 O和RE(His) 3 (NO3 ) 3 ·2H2 O ,它们均属固液一致溶解化合物 .在相平衡结果指导下 ,合成了文献中未见报道的配合物RE(His) (NO3 ) 3 ·H2 O (RE =La～Nd ,Sm～Lu ,Y) ,用化学分析和元素分析确定了它们的组成 ,并通过光谱、热谱研究了它们的性质 ,用转动弹热量计测定了他们的燃烧能 ,计算出它们的标准生成焓 .
The solubility properties of RE (NO3) 3 His H2 O (RE = Sm, Gd, Er) at 25 ℃ and full range of concentration were studied by semi-micro phase equilibria method. The results showed that two different (His) (NO3) 3 · H 2 O and RE (His) 3 (NO3) 3 · 2H 2 O, all of which are solid-liquid co-dissolved compounds under the guidance of phase equilibrium results. (RE) (NO3) 3 · H 2 O (RE = La ~ Nd, Sm ~ Lu, Y) have been reported. Their chemical compositions and elemental analyzes have been used to determine their compositions. Their properties were studied, their combustion energies were measured with a rotating bomb calorimeter, and their standard enthalpy of formation was calculated.