An Analytic Expression for the Dependence of the Apparent Acid Constant on the Degree of Dissociation of Surface Silanol Groups of Silica with Different Sizes

被引：0

作者：

Luo, Genxiang ^{[1
]}

Wang, Haoping ^{[1
]}

机构：

[1] Liaoning Shihua Univ, Sch Chem & Mat Sci, Dept Chem, Liaoning 113001, Peoples R China

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2009年 / 30卷 / 08期

关键词：

Apparent acid constant; degree of dissociation; Poisson-Boltzmann equation; silica; SPHERICAL COLLOIDAL PARTICLE; POTENTIAL RELATIONSHIP;

D O I：

10.1080/01932690802701762

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using the surface charge density/surface potential relationship for a spherical colloidal particle with high surface potential, a simple expression for the relationship of the apparent acid constant with the degree of dissociation of surface silanol groups of silica with different sizes is derived. The present formula has good agreement with literature values and is quite simple for practical use.

引用

页码：1195 / 1197

页数：3

共 11 条

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JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2019, 166 (16) : H877 - H887

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