| 外推法测定甘油和硼酸反应平衡常数 |
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| 引用本文： | 吴义平,包翠莲,开小明.外推法测定甘油和硼酸反应平衡常数[J].安庆师范学院学报(自然科学版),2005,11(3):76-77. |
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| 作者姓名： | 吴义平 包翠莲 开小明 |
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| 作者单位： | 安庆师范学院,化学系,安徽,安庆,246011;安庆职业技术学院,安徽,安庆,246003 |
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| 摘 要： | 探索了利用电位法1]测定甘油和硼酸反应的平衡常数。在不同浓度下,甘油与硼酸反应生成硼酸甘油酯,通过电位法测定溶液的pH值,间接测定硼酸甘油酯的含量,通过逐步逼近法,外推到浓度接近零时的平衡常数,得到甘油与硼酸反应的平衡常数为K=3.0×1-0 9。
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| 关 键 词： | 外推法 甘油 硼酸 电位法 平衡常数 |
| 文章编号： | 0007-4260（2005）03-0076-02 |
| 收稿时间： | 2004-02-18 |
| 修稿时间： | 2004-02-18 |
Using Extrapolation to Determine the Equilibrium Constant of the Reaction of Glycerol and Boric Acid |
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| Wu Yi-ping,BAO Cui-lian,KAI Xiao-ming.Using Extrapolation to Determine the Equilibrium Constant of the Reaction of Glycerol and Boric Acid[J].Journal of Anqing Teachers College(Natural Science Edition),2005,11(3):76-77. |
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| Authors: | Wu Yi-ping BAO Cui-lian KAI Xiao-ming |
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| Institution: | WU Yi-ping~1,BAO Cui-lian~2,KAI Xiao-ming~1 |
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| Abstract: | This article explores the way of using electropotential method to determine the equilibrium constant of the reaction of glycerol and boric acid.Of different concentration,glycerol can react with boric acid to form glyceroborate.By means of electropotential method,the PH of the solution is determined.Then the content of glyceroborate can be determined indirectly.Through the way of gradual approaching,when the concentration approaches to zero,the equilibrium constant can be got by extrapolation,that is k=3.0×10~(-9). |
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| Keywords: | extrapolation glycerol boric acid electropotential method equilibrium constant |
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