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    Influence of temperature, pH, and time of base hydrolysis on variation of the fatty acid composition of soapstock

    Year: 2012

    Journal: Russian Journal of Applied Chemistry, 2012, 85 (9), 1399-1403, 20131009

    Authors: T. N. Poyarkova, Yu. I. Prokof’ev, G. V. Kudrina, A. V. Tarasova, E. V. Sotnikova

    Organizations: Voronezh State University, Voronezh, Russia; Bunin Elets State University, Elets, Lipetsk oblast, Russia; Voronezh State University of Engineering Technologies, Voronezh, Russia; Moscow State Automotive Institute, Moscow, Russia

    Seven samples of surfactants were prepared from soapstock (waste from sunflower-seed oil production) under different conditions of base hydrolysis. The surfactant properties of the products at the solution-air boundary (surface activity, adsorption layer thickness, molecular area, work of adsorption, limiting adsorption) were studied.