Solubility of gases in butanols .2. Solubilities of nonpolar gases in 2-methyl-1-propanol from 263.15 to 303.15 K at 101.33 kPa partial pressure of gas

Solubilities of 15 nonpolar gases (He, Ne, Ar, Kr, Xe, H-2, D-2, N-2, O-2, CH4, C2H4, C2H6, CF4, SF6 and CO2) in 2-methyl-1-propanol have been measured at 263.15, 273.15, 283.15, 293.15, and 303.15 K and at the partial pressure of gas 101.33 kPa. Standard changes in the thermodynamic properties for the solution process (enthalpies, entropies and Gibbs energies) at 298.15 K have been derived from the experimental data. The scaled particle theory (SPT) has been applied in order to estimate the Lennard-Jones 6,12 pair potential parameters at 298.15 K and the dependence of the effective hard-sphere diameter on the temperature for 2-methyl-1-propanol. Theoretical solubilities and values for the thermodynamic functions have been calculated using the SPT in the reverse direction starting from the potential parameters. Results for 2-methyl-1-propanol have been compared with those corresponding to 1-butanol.