Flow Activation Volume of Mixed Mineral Oils and Fatty Oils

Abstract

The activation volume of viscous flow in mixtures of paraffinic and naphthenic base oils of high and low viscosities, and in those of liquid fatty acids, their esters, and fatty oils have been determined experimentally. The results are used to test the applicability of the semiempirical formula which can estimate the activation volume from the molecular structure of the substance involved. Limitations in its applicability are also discussed.