Accurate Measurement of Activity Coefficient at Infinite Dilution by Inert Gas Stripping and Gas Chromatography

1977 ◽  
Vol 16 (1) ◽  
pp. 139-144 ◽  
Author(s):  
Jean-Claude Lerol ◽  
Jean-Claude Masson ◽  
Henri Renon ◽  
Jean-Francois Fabries ◽  
Henri Sannier
Keyword(s):  
Gas Chromatography ◽  
Activity Coefficient ◽  
Infinite Dilution ◽  
Inert Gas ◽  
Gas Stripping

Measurement of large infinite dilution activity coefficients of nonelectrolytes in water by inert gas stripping and gas chromatography

1993 ◽  
Vol 65 (22) ◽  
pp. 3212-3218 ◽  
Author(s):  
Jianjun. Li ◽  
Andrew J. Dallas ◽  
David I. Eikens ◽  
Peter W. Carr ◽  
Diane L. Bergmann ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Activity Coefficients ◽  
Infinite Dilution ◽  
Inert Gas ◽  
Gas Stripping ◽  
Infinite Dilution Activity Coefficients

Infinite dilution activity coefficient measurements by inert gas stripping method

2006 ◽  
Vol 243 (1-2) ◽  
pp. 126-132 ◽  
Author(s):  
Piia Haimi ◽  
Petri Uusi-Kyyny ◽  
Juha-Pekka Pokki ◽  
Juhani Aittamaa ◽  
Kari I. Keskinen
Keyword(s):  
Activity Coefficient ◽  
Infinite Dilution ◽  
Inert Gas ◽  
Gas Stripping ◽  
Infinite Dilution Activity Coefficient ◽  
Stripping Method

Infinite dilution activity coefficient of solvents in poly-3-hydroxybutyrate from inverse gas chromatography

2020 ◽  
Vol 522 ◽  
pp. 112742
Author(s):  
Anne C. Belusso ◽  
Maria Lina Strack ◽  
Lucas da S. Guadagnin ◽  
Débora J.L. Faccin ◽  
Nilo S.M. Cardozo ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Activity Coefficient ◽  
Infinite Dilution ◽  
Inverse Gas Chromatography ◽  
Infinite Dilution Activity Coefficient

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).

A modification of the inert gas stripping method for measuring the limiting activity coefficient

1990 ◽  
Vol 55 (6) ◽  
pp. 1457-1464 ◽  
Author(s):  
Július Surový ◽  
Jana Ovečková ◽  
Elena Graczová
Keyword(s):  
Liquid Phase ◽  
Activity Coefficient ◽  
Activity Coefficients ◽  
Solute Concentration ◽  
Inert Gas ◽  
Gas Stripping ◽  
Stripping Method ◽  
Good Agreement

A modification of the inert gas stripping method for measuring the limiting activity coefficient is proposed. Compared to the procedure used so far, the modification consists of a change in the apparatus arrangement and measurement of the decrease in solute concentration in the liquid phase only. The method has been tested by measuring the limiting activity coefficients of heptane in N-methylpyrrolidone at 25, 50 and 55 °C. The results are in good agreement with published values determined by various methods.

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