Measurement of Activity Coefficient at Infinite Dilution of Hydrocarbons in Sulfolane Using Gas−Liquid Chromatography

2007 ◽  
Vol 52 (4) ◽  
pp. 1459-1463 ◽  
Author(s):  
Yang-Xin Yu ◽  
Qiang Gong ◽  
Li-Li Huang
Keyword(s):  
Liquid Chromatography ◽  
Activity Coefficient ◽  
Infinite Dilution ◽  
Gas Liquid Chromatography

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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