Determination of physicochemical properties of some fatty acid methyl esters by gas liquid chromatography

• Published in: Journal of the American Oil Chemists' Society Vol. 70; no. 2; pp. 149 - 155
• Main Authors: Husain, Sajid, Sarma, P. Nageswara, Swamy, G. Y. S. K., Devi, K. Sita
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer‐Verlag 01-02-1993; Springer
• Subjects: Activity coefficient; Applied sciences; Chemical industry and chemicals; Composition, physical and chemical properties; DEGA; Exact sciences and technology; fatty acid methyl esters; gas liquid chromatography; heats of vaporization; Oils and fats; physicochemical properties; SE‐30; vapor pressure; Vapor pressure; Heat of vaporization; Activity coefficient; Fatty ester; Entropy; Oils and fats; Chemical properties; Gas liquid chromatography; Experimental study; Thermodynamic properties; Physical properties; Molecular weight
• ISSN: 0003-021X; 1558-9331
• DOI: 10.1007/BF02542618

Physicochemical data such as vapor pressures (p0), heats of vaporization (ΔHv), activity coefficents at infinite dilution (γ∞) and excess partial molar entropy (ΔSe0) are considered important for conducting unit processes and designing reactor equipment. Scanty information regarding such data is available in the literature for the higher fatty acid methyl esters. The objective of this research was to determine the physicochemical properties of higher fatty acid methyl esters (C11–C23) by a gas‐liquid chromatographic technique with SE‐30 and diethylene glycol adipate as stationary phases. Correlations between carbon numbers and various thermodynamic properties have indicated definite trends, which could be useful in predicting the properties of unknown fatty acid methyl esters. The data generated may be useful to chemical engineers in the construction of storage tanks, solvent extractors and distillation columns.