Surface‐tension prediction for liquid mixtures

Abstract

Recently Escobedo and Mansoori (AIChE J. 42(5): 1425, 1996) proposed a new expression, originally derived from statistical mechanics, for the surface tension prediction of pure fluids. In this report, the same theory is extended to the case of mixtures of organic liquids with the following expression, where  m is the surface tension of the mixture. Using the proposed equation surface tensions of 55 binary mixtures are predicted within an overall 0.50 AAD% which is better than the other available prediction methods. When the P 0,i 's are made compound-insensitive using a corresponding states expression the surface tension of all the 55 binary mixtures are predicted within an overall 2.10 AAD%. The proposed model is also applicable to multicomponent liquid mixtures.

Fire safety tests comparing synthetic jet and diesel fuels with JP-8

“…All surface tension profiles decreased linearly with temperature. The surface tension using a binary mixture of hexane and benzene was also calculated [15] at the boiling temperature of the mixture. Results are shown in Fig.…”

“…Escobedo and Mansoori give an expression from which the surface tension of organic compounds can be estimated for pure liquids [14] and for liquid mixtures [15]. The expression for pure liquids is…”

Thin, binary liquid droplets, containing polymer: an investigation of the parameters controlling film shape

“…In order for the surface energy of the droplet to be minimised, however, there is a preferential partition of the liquid with lower surface tension to the droplet surface (Hildebrand & Scott 1964;Schmidt, Randall & Clever 1966;Suri & Ramakrishna 1968;Escobedo & Ali Mansoori 1998). For this reason and following Hildebrand & Scott (1964) and Suri & Ramakrishna (1968), the surface tension is fitted using…”

Experimental and Computational Methods Pertaining to Surface Tension of Pharmaceuticals

“…Later they extended the same conformal solution theory to the case of mixtures of organic liquids. This equation was applied to 55 binary mixtures and the AAD was 0.5 % (Escobedo and Mansoori, 1998). However these equations are complicated and require critical temperature, critical pressure as well as critical compressibility and acentric factor.…”