Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-25T05:20:33.083Z Has data issue: false hasContentIssue false
  • English
  • Français

On the interaction of colloidal particles V. nature of repulsion between particles in dilute sols

Published online by Cambridge University Press:  24 October 2008

S. Levine
S. Levine
Affiliation:
Birkbeck Colege Research Laboratory21 Torrington SquareLondon, W.C. 1
Get access Rights & Permissions [Opens in a new window]

Abstract

An extension is proposed to the theory of Verwey and Overbeek on the force between two colloidal particles in a dilute sol. The effect of the Coulomb interaction of the ions in the dispersion medium is considered. It is shown that this contributes an additional repulsion term to the mutual free energy of the two particles. This correction term behaves as an inverse power and is the predominant effect at large separations, although it is a second-order effect at small separations. For parallel plates, this power is the fourth, and for two spheres, the sixth. A tentative calculation shows that, at least for thin plates and low electrolyte concentrations, our new repulsion will outweigh the attractive London-van der Waals force considered by Verwey and Overbeek, and more recently by Casimir and Polder, when the plates are far apart.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 47 , Issue 1 , January 1951 , pp. 230 - 242
Copyright
Copyright © Cambridge Philosophical Society 1951

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Levine, S. (Part III). Phil. Mag. 41 (1950), 53.CrossRefGoogle Scholar
(2)Levine, S. (Part IV). Proc. Cambridge Phil. Soc. 47 (1951), 217.CrossRefGoogle Scholar
(3)Casimir, H. B. G. In Theory of stability of lyophobic colloids (Elsevier, 1948), p. 63, by Verwey, and Overbeek, .Google Scholar
(4)Verwey, E. J. W. and Overbeek, J. Th. C. Theory of stability of lyophobic colloids (Elsevier, 1948).Google Scholar
(5)See, for example, Levine, S., Proc. Roy. Soc. A, 170 (1939), 165.Google Scholar
(6)Levine, S. (Part I). Trans. Faraday Soc. 42B (1946), 102.CrossRefGoogle Scholar
(7)Levine, S. (Part II). Trans. Faraday Soc. 44 (1948), 833.CrossRefGoogle Scholar
(8)Casimir, H. B. G. and Polder, D.Phys. Rev. 73 (1948), 360.CrossRefGoogle Scholar