Binary Mixing Approximations and Relations between Specific Conductance, Molar Conductance, Equivalent Conductance, and Ionar Conductance for Mixtures†
Binary Mixing Approximations and Relations between Specific Conductance, Molar Conductance, Equivalent Conductance, and Ionar Conductance for Mixtures†
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DOI：
10.1021/jp951157u
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发表时间：
1996-01
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影响因子：
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通讯作者：
Donald G. Miller
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文献类型：
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作者：
Donald G. Miller
简单的线性近似混合物的比电导可以写在各种溶质分数（摩尔，当量，或离子强度）和其组成的二元系统的比电导。这些二元电导在表征混合物的某种类型的“恒定”浓度（恒定总摩尔浓度、恒定总当量或恒定总离子强度）下进行评估。这些表达式可以通过包括校正项来精确地拟合实验数据。一般形式已经推导出转换这些二进制近似的比电导和相应的校正项类似的二进制近似的“浓度电导”，如摩尔，当量，或离子（离子强度）电导。相反，简单的二进制近似任何浓度电导在任意分数的任意二进制评估策略导致二进制近似的具体电导…
Simple linear approximations to the specific conductance of a mixture can be written in terms of various solute fractions (molar, equivalent, or ionic strength) and the specific conductances of its constituent binary systems. These binary conductances are evaluated at some type of “constant” concentration which characterizes the mixture (constant total molarity, constant total equivalents, or constant total ionic strength). These expressions can be made exact for fitting experimental data by including a correction term. General forms have been derived for transforming these binary approximations for the specific conductance and their corresponding correction terms to the analogous binary approximations for “concentration conductances” such as molar, equivalent, or ionar (ionic strength) conductance. Conversely, simple binary approximations for any concentration conductance in terms of arbitrary fractions for an arbitrary binary evaluation strategy lead to binary approximations for the specific conductance...