Vapor-liquid equilibrium constants of alkylbenzenes in n-alkane solvents at infinite dilution by gas-liquid chromatography

1977 ◽  
Vol 22 (2) ◽  
pp. 153-156 ◽  
Author(s):  
Toshiaki Sugiyama ◽  
Tsugio Takeuchi ◽  
Yoshihito Suzuki
Keyword(s):  
Liquid Chromatography ◽  
Infinite Dilution ◽  
Equilibrium Constants ◽  
Gas Liquid Chromatography ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Alkane Solvents ◽  
Vapor Liquid

Studies on thermodynamics of solution by gas chromatography: solubility measurements of hydrocarbons in cycloalkanols

1977 ◽  
Vol 55 (7) ◽  
pp. 1273-1278 ◽  
Author(s):  
Rakesh K. Kuchhal ◽  
Kanai L. Mallik ◽  
Pyare L. Gupta
Keyword(s):  
Gas Chromatography ◽  
Liquid Chromatography ◽  
Activity Coefficient ◽  
Benzyl Alcohol ◽  
Infinite Dilution ◽  
Gas Liquid Chromatography ◽  
Liquid Equilibrium ◽  
Solvent Interaction ◽  
Solute Solvent Interaction ◽  
Statistical Approaches

Activity coefficients at infinite dilution have been determined by gas–liquid chromatography for nine hydrocarbons solutes in cyclopentanol, cyclohexanol, cycloheptanol, benzyl alcohol, and n-heptanol at 25 °C. Experimental results for cyclopentane and cyclohexane in cycloalkanols compare favourably with the values obtained by extrapolation to infinite dilution of activity coefficient data calculated from Benson et al.'s static (vapour–liquid equilibrium) measurements. Some characteristics of the solute–solvent interaction in the systems are discussed in light of statistical approaches (thermal and athermal contributions).

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