Solubility of nonpolar gases in 2-methylcyclohexanone between 273.15 and 303.15 K at 101.32 kPa partial pressure of gas

Abstract

Solubility measurements of several nonpolar gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, CH4, C2H4, C2H6, CF4, SF6, and CO2) in 2-methylcyclohexanone at 273.15–303.15 K and a partial pressure of gas of 101.32 kPa are reported. Thermodynamic functions (Gibbs energy, enthalpy, and entropy) for the solution process at 298.15 K and 101.32 kPa partial pressure of gas are evaluated. Use is made of the Scaled Particle Theory applied to gas solubility for determining Lennard-Jones (6, 12) pair-potential parameters and temperature dependence of the effective hard-sphere diameter of the solvent. The values that this theory predicts for the solution thermodynamic functions are also calculated. Keywords: 2-methylcyclohexanone, gas solubility, thermodynamic functions of solution, Henry coefficient, scaled particle theory.

Solubilities of gases in cycloethers. The solubility of 13 nonpolar gases in 2,5-dimethyltetrahydrofuran at 273.15 to 303.15 K and 101.32 kPa

“…are. The same pattern has been observed for the similar cycloketone series cyclohexanone, 2-methylcyclohexanone, and 2,6-dimethylcyclohexanone [33][34][35].…”

Solubility of nonpolar gases in 2,6-dimethylcyclohexanone

“…from the solubility data of rare gases at different temperatures (23), and l1 = -1.48 X lop4 K-' from enthalpy solution data (24). The agreement between both methods is ordinary (4,7,24). Once the parameters for the solvent were known, calculations were made to obtain the theoretical values of the thermodynamic functions in the solution process.…”

“…This paper is a continuation of our work on the solubility of non-polar gases (1)(2)(3)(4)(5)(6)(7)(8) to study the influence exerted by the presence of different features in the solvent molecule. In this particular case we were interested in seeing how the solubility changes with the introduction of methyl groups as substituents in the solvent cyclohexanone.…”

“…In this particular case we were interested in seeing how the solubility changes with the introduction of methyl groups as substituents in the solvent cyclohexanone. Previously, the solubility of fourteen non-polar gases in cyclohexanone and 2-methylcyclohexanone was measured and published in this journal (4,7).…”