Abstract
Vapor−liquid equilibria measured with a static apparatus are reported for binary mixtures of 2-methylpropene and the following C1−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 (313.15 K and 322.77 K). Measured pTz (pressure−temperature−total composition) data were reduced to liquid- and vapor-phase compositions using Barker's method. Binary interaction parameters were optimized for the Legendre polynomial, Wilson, UNIQUAC, and nonrandom two-liquid methods. An error analysis for all measured results was performed. All systems indicated a positive deviation from Raoult's law. Azeotropic behavior was observed for 2-methyl propene + methanol binary.
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