| 强酸与多元酸混合物中各组分酸含量测定方法研究 |
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| 引用本文： | 李汉洙. 强酸与多元酸混合物中各组分酸含量测定方法研究[J]. 分析化学, 1993, 21(4): 431-434 |
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| 作者姓名： | 李汉洙 |
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| 作者单位： | 延边医学院分析化学教研室 延吉 |
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| 摘 要： | 各级离解常数均大于10~(-7),而且相邻两级的离解常数之比K_(a1)/K_(a2)只有几十倍的多元酸与强酸混合情况下,提出通过测量多元酸的半中和点,分别测定各组分酸含量的酸碱滴定法。
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| 关 键 词： | 强酸 多元酸 混合酸 半中和点 |
Determination of Each Acid Content in Mixture of Strong and Polybasic Acids |
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| Li Hanzhu. Determination of Each Acid Content in Mixture of Strong and Polybasic Acids[J]. Chinese Journal of Analytical Chemistry, 1993, 21(4): 431-434 |
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| Authors: | Li Hanzhu |
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| Abstract: | A convenient method for the determination of each acid content in mixture of strong acids and polybasic acids whose consecutive dissociation constants ratio of two neighboring levels. Ka1/Ka2, is noly several ten times was proposed, and the content calculation formula of strong acid, Ve2/VeT = V/VeT -1,was deduced theoretically under the condition that the half neutralization point of polybasic acids was first terminal point (or 1/3 neutralization point) whose pH was determined by using the polybasic acids containing sodium chloride as a standard solution. |
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| Keywords: | Strong acid Polybasic acid Mixed acid Half neutralization point. |
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