| 18—钨—2—砷杂多酸稀土盐合成与性质研究 |
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| 引用本文： | 陈新,刘景福,阎德环.18—钨—2—砷杂多酸稀土盐合成与性质研究[J].哈尔滨师范大学自然科学学报,1988(3). |
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| 作者姓名： | 陈新 刘景福 阎德环 |
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| 作者单位： | 辽宁师范大学，东北师范大学，化学系 |
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| 摘 要： | 本文采用复分解法,首次合成出Ln_2As_2W(18)O_(62)xH_2O(Ln:La,Ce,Nd,Sm,Gd.)系列杂多酸稀土盐,紫外吸收光谱、红外吸收光谱、x—射线粉末衍射分析都证明所合成产物具有Dawson结构,用差热——热重分析及溶液分光光度等手段,研究了合成产物的热性质和水溶液的酸碱稳定性。
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| 关 键 词： | 杂多酸稀土盐 |
The Preparation and the Properties of Lanthanide Elements 2: 18 Arsenotungstungstate |
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| Chen Xin.The Preparation and the Properties of Lanthanide Elements 2: 18 Arsenotungstungstate[J].Natural Science Journal of Harbin Normal University,1988(3). |
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| Authors: | Chen Xin |
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| Institution: | Chen Xin (Liaoning Normal University) Liu Jingfu (Northeast Normal University) Yian Dehuan (Department of Chemistry) |
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| Abstract: | The heteropoIycompounds Ln_2As_2W_(18)O_62(Ln: La, Ce, Nd, Sm, Gd)were prepared by double decomposition method. Some properties of these compounds were studied by means of TG and DTA measurements, UV, IR spectrometry and X-ray powder analysis. Crystal determination shows that these compounds have Dowson structure. The. stability range of the anions was given in terms of the pH. |
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| Keywords: | Rare-earth salt Heteropoly acid |
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