| DyCl3-CdCl2-H2O和DyCl3-CdCl2-HCl-H2O(25 ℃)的相平衡 |
| Phase Equilibrium of the DyCl3-CdCl2-H2O and DyCl3-CdCl2-HCl(～8%)-H2O System at 25 ℃ and Characterization of New Compound |
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| 摘要: 测定了三元体系DyCl3-CdCl2-H2O和四元体系DyCl3-CdCl2-HCl(～8%)-H2O(25 ℃)的相平衡溶度数据，绘制了相应的溶度图。三元体系和四元体系均为复杂体系且均有新化合物9CdCl2·2DyCl3·29H2O生成。对化合物9CdCl2·2DyCl3·29H2O进行了XRD、TG-DTG和荧光光谱研究，并对X-射线粉末衍射数据进行了指标化。该化合物属单斜晶系，具有一定的荧光强度，在50～242 ℃分3步失去结晶水。 |
| 关键词: 三元体系 四元体系 相平衡 氯化镉 氯化镝 荧光光谱 |
| 基金项目: |
| Abstract: The equilibrium solubilities of the ternary system DyCl3-CdCl2-H2O, the quaternary system DyCl3-CdCl2 -HCl-H2O were determined at 25 ℃ and the corresponding equilibrium diagrams were constructed. The two systems were complex system with formation of a new compound 9CdCl2·2DyCl3·29H2O. The new compound was congruently soluble in the quaternary, and non-congruently soluble in the ternary system. The new compound has been characterized by XRD, TC-DTG and fluorescence spectroscopy. And the XRD pattern was indexed. Results show that the compound belongs to monoclinic system, emits fluorescence, and loses its crystal water by three steps at 50 to 242 ℃. |
| Keywords: ternary system quaternary system phase equilibrium cadmium chloride dysprosium trichloride fluorescence spectra |
| 投稿时间：2005-05-15 修订日期：2005-07-14 |
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| 乔占平,卓立宏,郭应臣,王惠.DyCl3-CdCl2-H2O和DyCl3-CdCl2-HCl-H2O(25 ℃)的相平衡[J].无机化学学报,2005,21(11):1667-1671. |
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