Thin Water Layers on CaCO3Particles Dispersed in Oil with Added Salts

Lee, Seung Yeon and O’Sullivan, Michael and Routh, Alexander F. and Clarke, Stuart M. (2009) Thin Water Layers on CaCO3Particles Dispersed in Oil with Added Salts. Langmuir, 25 (7). p. 3981. ISSN 0743-7463 DOI 10.1021/la802616n

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Abstract

We report an investigation of the presence of thin water layers on calcium carbonate particles dispersed in cyclohexane using small-angle neutron scattering. We identify an adsorbed water layer and measure the thickness using contrast variation to optimize the sensitivity of the scattering to the water. We also report the variation in thickness of these water layers in the presence of salt solutions with the variation of salt concentration and valency. We conclude that thin water layers can be observed using SANS; however, the layers are thin and correspond to essentially the hydration of the particle surfaces.

Item Type: Article
Uncontrolled Keywords: 09AREP; BPI
Subjects: 99 - Other
Divisions: 99 - Other
Journal or Publication Title: Langmuir
Volume: 25
Page Range: p. 3981
Identification Number: 10.1021/la802616n
Depositing User: Sarah Humbert
Date Deposited: 21 Jul 2010 20:53
Last Modified: 23 Jul 2013 09:57
URI: http://eprints.esc.cam.ac.uk/id/eprint/1497

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