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Analysis of the structure of aqueous solutions of isopropanol based on optical, volumetric, and elastic dataстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 января 2016 г.
- Авторы: Abramovich A.I., Lanshina L.V.
- Журнал: Russian Journal of Physical Chemistry A
- Том: 89
- Номер: 7
- Год издания: 2015
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 1211
- Последняя страница: 1215
- Аннотация: The curve of the concentration dependence of the total molecular light scattering coefficient of xC3H7OH–(1 – x)H2O solutions showed two sharp maxima (at x = 0.04 and 0.09) and a minimum at x = 0.06 mole fractions, suggesting a considerable rearrangement of the structure of the solutions near these concentrations. The concentration dependences of excess molar volume, adiabatic compressibility, and molar refraction showed negative deviations from the ideal with a minimum in the range x = 0.18–0.3. The structure of water was assumed to undergo a rearrangement at x = 0.04 accompanied by structural fluctuations, which dispersed at 0.04 < х < 0.06. At x = 0.06, associates of isopropanol molecules started to form, whose number and size increased linearly up to x = 0.13. In the 0.13 < x < 0.35 concentration range, some kind of an aqueous alcohol emulsion containing pure alcohol “nanodrops” formed and the solutions became microheterogeneous. Keywords: isopropanol, aqueous solutions, molecular scattering coefficient, bulk elastic properties. DOI: 10.1134/S003602441507002X
- Добавил в систему: Абрамович Анна Ивановна