Solubility of Hydrocarbons in Acetic Acid

E. S. Rudakov, A. I. Lutsyk, and V. N. Mochalin

Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine,
Donetsk, 340114 Ukraine

Received July 20, 1995

Abstract—Equilibrium distribution coefficients = [RH]_gas/[RH]_sol were measured for solutions of normal,
iso-, and cycloalkanes and benzene in 100% acetic acid (AcOH) at 298 K and for methane in H₂O–AcOH over
the whole range of mixture compositions at 283–328 K. Nonelectrolyte solutions obey the equations
log(S_A/S_W)= a + b and (log S)^E = LV^E/ V relating the solubility of the nonelectrolyte (NE) in the acid (S_A)
to its partial molar volume () and solubility in water (S_W) (the first equation) and excess solubility values
(log S)^E to the molar volume (V^E) of the system (the second equation).

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