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Behavior of Cholesterol Chlorobetainate in Aqueous Solution

✍ Scribed by C. Botré; M. Brufani; F. M. Riccieri

Publisher
John Wiley and Sons
Year
1965
Tongue
English
Weight
299 KB
Volume
54
Category
Article
ISSN
0022-3549

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✦ Synopsis

Some physicochemical properties of cholesterol chlorobetainate in aqueous solution have been investigated. A critical concentration was detected by specific conductivity, refractive index, and activity coefficient determinations. Data are also repatted o n solubilization experiments with different polycyclic aromatic hydrocarbons. The differences between this compound and the most common ionic surfactants are discussed.

EVERAL YEARS ago, Giacomello et al. prepared S some steroid alcohol derivatives (esters with betaine hydrochloride) with very interesting physicochemical properties (1). Such compounds, in fact, pure or mixed with other esters of the same kind, gave gels with a water content 39 times the weight of solid substance. X-ray diffraction as well as microscopic studies showed that the swelling of the crystal form takes place only in two dimensions, the third one being constant.

This otudy reports some physicochemical properties of one of these compounds (cholesterol chlorobetainate) which may contribute to the knowledge of the behavior of such compounds in aqueous solution.

Data are also reported on the solubilization of aromatic hydrocarbons in aqueous solutions of cholesterol chlorobetainate.

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