| 酸度对CeCl3·nH2O晶体热分解过程的影响研究 |
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| 引用本文： | 李芳,孙都成,岳凡.酸度对CeCl3·nH2O晶体热分解过程的影响研究[J].新疆大学学报(理工版),2009,26(1):87-90. |
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| 作者姓名： | 李芳 孙都成 岳凡 |
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| 作者单位： | 新疆大学化学化工学院,新疆,乌鲁木齐,830046
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| 摘 要： | 采用热重-差式扫描量热法（TG—DSC）分析了不同酸度的盐酸-水合氯化铈饱和溶液中生成的CeCl3·nH2O晶体在空气氛围热分解脱水的过程，热分析表明酸度对CeCl3·nH2O晶体结晶形式有影响，氯化铈饱和溶液在盐酸中生成的CeCl3·nH2O晶体较商品CeCl3·nH2O晶体的热分解多一个恒温脱水失重的过程．X射线粉末衍射（XRD）结果表明此商品CeCl3·nH2O晶体为CeCl3·7H2O，盐酸-水合氯化铈饱和溶液中生成的CeCl3·nH2O晶体为含有不同个数结晶水的混合物．
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| 关 键 词： | CeCl3 晶体 热分析 |
Studies on Impact of Acidity Effect upon Thermal Decomposition Processes of CeCl3nH2O Crystals |
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| LI Fang,SUN Du-cheng,YUE Fan.Studies on Impact of Acidity Effect upon Thermal Decomposition Processes of CeCl3nH2O Crystals[J].Journal of Xinjiang University(Science & Engineering),2009,26(1):87-90. |
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| Authors: | LI Fang SUN Du-cheng YUE Fan |
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| Affiliation: | (College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China) |
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| Abstract: | By employing termogravimetry-differential scanning calorimetry（TG-DSC） method, in the air, the thermal decomposition processes of CeCl3·nH2O crystals which were attained in hydrochloric acid-cerium chloride hydrate saturated solution of different acidity had been analyzed. The result of thermal analysis indicated that acidity had an effect on thermal decomposition processes of CeCl3·nH2O crystals, the CeCl3·nH2O crystals were generated in hydrochloric acid more a constant temperature thermal decomposition process than merchandise CeCl3·nH2O crystals. X-ray diffraction results show that the merchandise CeCl3·nH2O crystals were CeCl3·7H2O, the CeCl3·nH2O crystals which were generated in hydrochloric acid containing different number of crystal hydrate. |
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| Keywords: | CeCl3 |
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