ISOBARIC VAPOR-LIQUID-EQUILIBRIA IN THE MIXTURES OF 1-HEPTYNE-OCTYNE+3-OCTYNE, +ETHYLBENZENE AND +DIBUTYL ETHER, 2-OCTYNE+DIBUTYL ETHER AND+1-BUTANOL, AND 3-OCTYNE+1-OCTENE(BUTANAL, 1)
H. Kirss et al., ISOBARIC VAPOR-LIQUID-EQUILIBRIA IN THE MIXTURES OF 1-HEPTYNE-OCTYNE+3-OCTYNE, +ETHYLBENZENE AND +DIBUTYL ETHER, 2-OCTYNE+DIBUTYL ETHER AND+1-BUTANOL, AND 3-OCTYNE+1-OCTENE(BUTANAL, 1), Thermochimica acta, 228, 1993, pp. 283-289
For seven binary systems containing isomeric alkynes, the isobaric var
iations of the boiling temperature with liquid-phase composition were
determined using a semi-micro ebulliometer over the entire composition
range. The experimental data were used to fit the adjustable paramete
rs in the Redlich-Kister and Wilson equations. The new UNIFAC interact
ion parameters were determined separately for the terminal and interna
l triple-bond groups.