Solubility of Methane, Propane, and N-Hexane in the Water-Sulfuric Acid System At 283-343 K
The limiting distribution coefficients α = lim([HC]g / [HC]sln) (HC stands for "hydrocarbon") corresponding to [HC]g → 0 were measured for solutions of methane, propane, and n-hexane in the water-sulfuric acid system at acid concentrations of 0 to 100% in the temperature range 283-343 K. Substrate structure, solvent composition, and temperature effects on the solubility were studied. In the studied medium composition and temperature ranges, the equation (logα) ≡ logαE - φWlogαW - φAlogαA = Lφ(VE/V), where φW and φA are the volume fractions of water and acid, respectively, and VE is the excess volume, describes experimental data much more accurately than a similar equation with (logα)E in mole fractions.
A. I. Lutsyk et al., "Solubility of Methane, Propane, and N-Hexane in the Water-Sulfuric Acid System At 283-343 K," Russian Journal of Physical Chemistry A, vol. 73, no. 3, pp. 390-394, Maik Nauka-Interperiodica Publishing, Jan 1999.
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© 1999 Maik Nauka-Interperiodica Publishing, All rights reserved.
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