M.A. Gallardo

Solubility of He, Ne, Ar, Kr, Xe, H2, D2, N2, O2, CH4, C2H4, C2H6, CF4, SF6 and CO2 in cyclopentanone from 273.15 K to 303.15 K and gas partial pressure of 101.33 kPa

Abstract Solubility measurements of several non-polar gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, O2, CH4, C2H4, C2H6, CF4, SF6 and CO2) in cyclopentanone at 273.15 K to 303.15 K and a gas partial pressure of 101.33 kPa are reported. Thermodynamic functions (standard changes in Gibbs energy, enthalpy and entropy) for the solution process at 298.15 K and gas partial pressure of 101.33 kPa 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 effective hard-sphere diameter of the solvent. The values that this theory predicts for the solution thermodynamic functions are also calculated.

Solubility of 15 non-polar gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, O2, CH4, C2H4, C2H6, CF4, SF6 and CO2) in cycloheptanone

Abstract Solubility measurements (expressed as Henry coefficients) of 15 non-polar gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, O2, CH4, C2H4, C2H6, CF4, SF6 and CO2) in cycloheptanone at 273.15, 283.15, 293.15, 298.15 and 303.15 K and a gas partial pressure of 101.33 kPa are reported. Standard changes of Gibbs energy, enthalpy and entropy for the solution process at 298.15 K are obtained from Henry coefficients and their variation with temperature. Lennard-Jones (6–12) pair potential parameters for cycloheptanone are estimated with the scaled particle theory; experimental Henry coefficients are compared with values calculated using this theory.

Solubility of nonpolar gases in hexamethylenoxide

Abstract Solubility measurements of 13 nonpolar gases (He, Ne, Ar, Kr, Xe, H 2 , D 2 , N 2 , CH 4 , C 2 H 4 , C 2 H 6 , CF 4 , and SF 6 ) in hexamethylenoxide were carried out at 101.32 kPa partial pressure of gas in the temperature range of 273.15 to 303.15 K. From the experimental results, partial molar Gibbs energy, partial molar enthalpy, and partial molar entropies of solution were evaluated. Using Pierottis method, Lennard-Jones 6,12 pair potencial parameters for hexamethylenoxide were calculated; the values found are 5.79.10 −10 m for σ 1 , and 641 K for e 1 /k.