STUDY OF THE COLLOIDAL STABILITY OF NANOSCALE AQUEOUS DISPERSIONS OF n-ALKANES C19H40, C20H42 and C21H44

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Abstract

The stability of aqueous nanoscale dispersions of n-alkanes C19H40, C20H42 and C21H44 was studied using optical methods by measuring laser light scattering intensity and particle size via dynamic light scattering at various temperatures. It was experimentally demonstrated that dispersions of n-alkanes in water, prepared by ultrasonic dispersion without surfactants, are stable under repeated thermal cycles of heating and cooling, during which the n-alkane particles in the sample melt and recrystallize.

About the authors

V. N Kuryakov

Institute of Oil and Gas Problems, RAS

Email: Vladimir.kuryakov@ipng.ru
Moscow, Russia

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