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The subsidence rates of suspensions of lithium stearate in n-heptane with n-alcohols as additives

Vold, MJ and Rathnamma, DV (1960) The subsidence rates of suspensions of lithium stearate in n-heptane with n-alcohols as additives. In: Journal of Physical Chemistry, 64 (11). pp. 1619-1622.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/j100840a005

Abstract

Suspensions of lithium stearate in n-heptane are highly unstable, undergoing gelation even at concentrations as low as 1 g./1. The rate of subsidence of these weakly gelled suspensions is decreased at first by the addition of n-alcohols, but passes through a minimum in some cases. The minimum subsidence rate occurs while the adsorption of the alcohol is still below its saturation value. One possible explanation of the effect is that the solvent layer between particles at the junction points in the gel becomes simultaneously more polar, tending toward an increased gel strength, and also thicker, tending toward a decreased gel strength.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Ms TV Yashodha
Date Deposited: 23 Jun 2010 05:57
Last Modified: 19 Sep 2010 06:09
URI: http://eprints.iisc.ac.in/id/eprint/28511

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