Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

Vapor liquid equilibrium (VLE) measured with a static apparatus is reported for binary mixtures of 2-methylpropene and the following C1 to C4 alcohols at the corresponding temperatures: methanol (323.15 K), ethanol (323.15 K), 2-propanol (323.15 K), 2-butanol (323.15 K) and 2-methyl-2-propanol (TBA) (313.15 K and 322.77 K). Measured pTz (pressure-temperature-total composition) data was reduced to liquid and vapor phase compositions using Barker's method. Binary interaction parameters were optimized for the Legendre polynomial, Wilson, UNIQUAC and NRTL methods. An error analysis for all measured results was performed. All systems indicated positive deviation from Raoult's law. Azeotropic behavior was observed for 2-methyl propene + methanol binary.