NDLI: Peculiarities of phase transformations in aqueous isopropanol solutions

Content Provider	Springer Nature Link
Author	Yatsenko, O. B. Chizhov, A. S. Popov, A. N. Shul’gin, V. A.
Copyright Year	2012
Abstract	Peculiarities of phase transformations in aqueous isopropanol solutions are studied in the range from room temperature to −15°C. It is found that solution cooling results in the formation of macroaggregates with regular geometrical shapes, which are dispersed in the liquid phase and directedly move in the field of a temperature gradient. In aqueous isopropanol solutions with concentrations of 10–30 vol %, the aggregates are formed at temperatures of −10 to −15°C. The average aggregate size is several millimeters. Under the action of a temperature gradient, the aggregates move to the region of higher temperatures. At temperature gradients of 1–2 K/cm, the aggregate velocity is 1–2 mm/s. The characters of the motion and interaction of aggregates are very sensitive to the temperature distribution in a solution. After the aggregate motion ceases, crystallization of the liquid phase that initially is outside of the aggregates is observed.
Starting Page	132
Ending Page	134
Page Count	3
File Format	PDF
ISSN	1061933X
Journal	Colloid Journal
Volume Number	74
Issue Number	1
e-ISSN	16083067
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2012-02-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Surfaces and Interfaces, Thin Films Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Physical and Theoretical Chemistry Surfaces and Interfaces

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