| 水热法合成稀土氯化物的条件探讨 |
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| 引用本文： | 谷惠文,肖云,陈超,叶丽娟,肖圣雄. 水热法合成稀土氯化物的条件探讨[J]. 广州化工, 2010, 38(12): 105-109 |
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| 作者姓名： | 谷惠文 肖云 陈超 叶丽娟 肖圣雄 |
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| 作者单位： | 湘南学院化学与生命科学系,湖南,郴州,423000;湘南学院化学与生命科学系,湖南,郴州,423000;湘南学院化学与生命科学系,湖南,郴州,423000;湘南学院化学与生命科学系,湖南,郴州,423000;湘南学院化学与生命科学系,湖南,郴州,423000 |
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| 基金项目： | 湖南省省级科技计划立项项目,湘南学院大学生研究性学习与创新性实验计划项目 |
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| 摘 要： | 采用单因素控制法,分别制备了在不同温度及pH值下的DyCl3.nH2O(s)和LaCl3.nH2O(s);运用滴定分析及差减法,测定了不同条件下所得稀土氯化物的结晶水含量,以温度-结晶水含量及pH值-结晶水含量作图,结果表明稀土氯化物中结晶水的含量随温度的升高先减少后增加,在60℃时出现最小值;结晶水含量随pH的增加呈S型曲线递增。
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| 关 键 词： | 水热法 稀土氯化物 结晶水含量 温度 pH值 |
Study on Conditions of Synthesis of Rare Earth Chlorides with Hydrothermal Method |
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| GU Hui-wen,XIAO Yun,CHEN Chao,YE Li-juan,XIAO Sheng-xiong. Study on Conditions of Synthesis of Rare Earth Chlorides with Hydrothermal Method[J]. GuangZhou Chemical Industry and Technology, 2010, 38(12): 105-109 |
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| Authors: | GU Hui-wen XIAO Yun CHEN Chao YE Li-juan XIAO Sheng-xiong |
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| Affiliation: | (Department of Chemistry and Life Science,Xiangnan University,Hunan Chenzhou 423000,China) |
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| Abstract: | Controlled by single factor method,a series of samples of DyCl3·nH2O（s） and LaCl3·nH2O（s） were synthesized respectively at conditions of different temperatures and pH values.Through titration and subtraction analysis,the content of the crystal water in the samples synthesized at different conditions were calculated.The figures of t-n and pH-n were drawn according to the experimental data,which stated that the content of the crystal water in the rare earth chlorides decreased firstly and then increased with the increasing temperature,and its minimum appeared when the temperature was 60℃,while the content of the crystal water in the rare earth chlorides increased along S curve with the increasing pH value. |
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| Keywords: | hydrothermal method rare earth chlorides content of the crystal water temperature pH value |
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