Experimental Demonstration of the Stabilization of Colloids by Addition of Salt

Sela Samin, Manuela Hod, Eitan Melamed, Moshe Gottlieb, Yoav Tsori

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We demonstrate a general non-Derjaguin-Landau-Verwey-Overbeek method to stabilize colloids in liquids. By this method, colloidal particles that initially form unstable suspension and sediment from the liquid are stabilized by the addition of salt to the suspending liquid. Yet, the salt is not expected to adsorb or directly interact with the surface of the colloids. For the method to work, the liquid should be a mixture, and the salt needs to be antagonistic such that each ion is preferentially solvated by a different component of the mixture. The stabilization may depend on the salt content, mixture composition, or distance from the mixture's coexistence line.

Original languageEnglish
Article number024008
JournalPhysical Review Applied
Issue number2
StatePublished - 28 Aug 2014

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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