On the use of the hypothesis of statistically homogeneous suspensions in the calculation of their conductivity

被引：1

作者：

López-García, JJ

Horno, J ^{[1
]}

Grosse, C

Delgado, AV

Shilov, VN

机构：

[1] Univ Jaen, Fac Ciencias Expt, Dept Fis, Jaen 23071, Spain

[2] Univ Nacl Tucuman, Dept Fis, RA-4000 San Miguel De Tucuman, Tucuman, Argentina

[3] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina

[4] Univ Granada, Fac Ciencias, Dept Fis Aplicada, Granada, Spain

[5] Natl Acad Sci Ukraine, Inst Biocolloid Chem, Kiev, Ukraine

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2001年 / 241卷 / 01期

关键词：

electrical conductivity; statistically homogeneous suspensions; electrokinetic measurements;

D O I：

10.1006/jcis.2001.7714

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：

In this paper the condition of a "statistically homogeneous" suspension is carefully analyzed. This condition requires that in the presence of a macroscopic gradient of the electric potential there are no macroscopic ion concentration gradients in the system. It is shown that the use of this condition, which should always be required in the calculation of the electrical conductivity of colloidal suspensions, is far from trivial. Furthermore, its hasty use can lead to substantial errors in the calculation of the conductivity increment. (C) 2001 Academic Press.

引用

页码：98 / 103

页数：6

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