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Thermodynamic quantities of surface formation of aqueous electrolyte solutions VIII. Aqueous solutions of sulfates salts.


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Title: Thermodynamic quantities of surface formation of aqueous electrolyte solutions VIII. Aqueous solutions of sulfates salts.
Authors: Matubayasi, Norihiro / Tsuchihashi, Susumu / Yoshikawa, Ryuji
Issue Date: 15-Jan-2009
Publisher: Academic Press
Citation: Journal of colloid and interface science, 329(2), pp.357-360; 2009
Abstract: In this work the surface tension of the aqueous solutions of alkali metal sulfate, magnesium sulfate, and magnesium nitrate have been measured with an expectation that the effect of sulfate salts on the air/water surface differs from that of typical electrolyte because of their peculiar results of surface potential data. The results show that the slope of surface tension-concentration curves of sulfate salts depends to some extent upon cations while that of alkali metal nitrate gives almost the same magnitude. In order to make comparison with salts of different valence types, we used the ratio of surface excess density to bulk concentration of a salt as an index of surface activity of the salt. It was shown that the surface activity of a salt largely dependent upon its valence type as well as its specific property of anion.
Keywords: surface tension / electrolytes
URI: http://hdl.handle.net/10069/20790
ISSN: 10957103
DOI: 10.1016/j.jcis.2008.09.081
PubMed ID: 18930247
Rights: Copyright © 2008 Elsevier B.V. All rights reserved.
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/20790

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