| EuCl3-CdCl2-HCl-H2O(25 ℃)的相平衡及其固相化合物 |
| Phase Equilibrium of the System EuCl3-CdCl2-HCl-H2O at 25 ℃ and Characterization of New Compounds |
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| 摘要: 测定了四元体系EuCl3-CdCl2-HCl-H2O(25 ℃)的相平衡溶度数据，绘制了相应的溶度图。该四元体系是复杂体系且有2个新物相化合物9CdCl2·EuCl3·22H2O和4CdCl2·EuCl3·14H2O生成。2个新物相化合物用XRD及TG-DTG和荧光光谱进行了研究。结果表明，新物相化合物均属单斜 |
| 关键词: 四元体系 相平衡 CdCl2 EuCl3 荧光光谱 |
| 基金项目: |
| Abstract: The equilibrium solubilities of the quaternary system EuCl3-CdCl2-HCl-H2O was determined at 25 ℃ and the corresponding equilibrium diagram was constructed. The systems is complicated with two new compounds 9CdCl2·EuCl3·22H2O and 4CdCl2·EuCl3·14H2O which have not yet been reported in literatures. The two new compounds have been characterized by XRD, TC-DTG and fluorescence spectrophotometer. Results show that the two compounds belong to monoclinic system, fluorescence spectrum exhibit at 390 nm (9CdCl2·EuCl3·22H2O) and 385 nm (4CdCl2·EuCl3·14H2O) excited at 240 nm, and 9CdCl2·EuCl3·22H2O loses its crystal water by two steps at 50 ℃ to 241 ℃, 4CdCl2·EuCl3·14H2O loses its crystal water by four at 42 ℃ to 332 ℃. |
| Keywords: quaternary system phase equilibrium cadmium chloride europium chloride fluorescence spectroscopy |
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| 乔占平,卓立宏,陈欣,王惠.EuCl3-CdCl2-HCl-H2O(25 ℃)的相平衡及其固相化合物[J].无机化学学报,2006,22(5):856-860. |
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