کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
610716 880656 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermodynamic quantities of surface formation of aqueous electrolyte solutions: VIII. Aqueous solutions of sulfates salts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Thermodynamic quantities of surface formation of aqueous electrolyte solutions: VIII. Aqueous solutions of sulfates salts
چکیده انگلیسی

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.

Thermodynamic properties essential to understand the distinct behavior and role of unsymmetrical valence type electrolyte are shown.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 329, Issue 2, 15 January 2009, Pages 357–360
نویسندگان
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