ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Reversible Flocculation of Silica Colloids in Liquid Mixtures

Narayanan, T and Kumar, A and Gopal, ESR and Beysens, D and Guenoun, P and Zalczer, G (1993) Reversible Flocculation of Silica Colloids in Liquid Mixtures. In: Physical Review E, 48 (3). pp. 1989-1984.

[img] PDF
Reversible_Flocculation_of_Silica_Colloids_in_Liquid.pdf
Restricted to Registered users only

Download (964Kb) | Request a copy

Abstract

We report some observations concerning the reversible flocculation of silica colloids in reentrant liquid mixtures of 3-methylpyridine plus water plus heavy water and 2, 6-lutidine plus water. The research involved a detailed determination of the line of flocculation temperatures for phase-separating as well as non-phase-separating mixtures. The authors find that the flocculation temperature is more influenced by the impurities in the suspension rather than the concentration and size of the spheres. For a fixed volume fraction and diameter of the colloids, they notice a close similarity between the dome of flocculation temperatures and the bulk-coexistence surface but with different amplitudes and exponents in each case.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 29 Jun 2006
Last Modified: 04 Jan 2013 06:56
URI: http://eprints.iisc.ernet.in/id/eprint/7735

Actions (login required)

View Item View Item