| 硫酸镁对硼酸介稳区性质的影响 |
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| 引用本文： | 李丽丽,董亚萍,彭姣玉,李武,孟庆芬.硫酸镁对硼酸介稳区性质的影响[J].盐湖研究,2013,21(1):38-43. |
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| 作者姓名： | 李丽丽 董亚萍 彭姣玉 李武 孟庆芬 |
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| 作者单位： | 1. 中国科学院青海盐湖研究所,青海西宁810008;中国科学院大学,北京100049
2. 中国科学院青海盐湖研究所,青海西宁,810008 |
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| 基金项目： | 国家自然科学基金(41273032);青海省科技厅项目(2009-G-202) |
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| 摘 要： | 通过浊度法测定10℃～45℃范围内MgSO4-H3BO3-H2O体系中硼酸的溶解度及介稳区宽度,得到硼酸的成核方程,并计算其表观成核级数。实验结果表明,硫酸镁的存在降低了硼酸的溶解度;随着硫酸镁浓度的升高,硼酸的介稳区宽度先变宽后变窄;硫酸镁的加入使硼酸的表观成核级数增加。
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| 关 键 词： | 硼酸 硫酸镁 溶解度 介稳区 |
The Effect of Magnesium Sulfate on the Metastable Zone Property of Boric Acid |
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| LI Li-li,DONG Ya-ping,PENG Jiao-yu,LI Wu,MENG Qing-fen.The Effect of Magnesium Sulfate on the Metastable Zone Property of Boric Acid[J].Journal of Salt Lake Research,2013,21(1):38-43. |
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| Authors: | LI Li-li DONG Ya-ping PENG Jiao-yu LI Wu MENG Qing-fen |
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| Institution: | 1(1.Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China; 2.University of Chinese Academy of Sciences,Beijing,100049,China) |
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| Abstract: | The solubility and metastable zone width of boric acid in MgSO4-H3BO3-H2O system were determined in the temperature range from 10 ℃ to 45 ℃ by turbidity method,the formulas of nucleation were obtained and the apparent nucleation orders of boric acid were calculated.The results showed that,the presence of magnesium sulfate decreases the solubility of boric acid;The metastable zone width of boric acid first becomes wider and then narrower with increasing concentrations of magnesium sulfate;the addition of magnesium sulfate increases the apparent nucleation orders of boric acid. |
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| Keywords: | Boric acid Magnesium sulfate Solubility Metastable zone width |
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