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

ABSTRACT

The molar excess volumes (VE) of sec-butyl chloride or tert-butyl chloride (A) + benzene or toluene or o- or m- or p-xylene (B) were measured at T = 298.15 K over the entire composition range using a V-shaped dilatometer. The VE values for all these binary mixtures were found to be negative, whereas these change sign from positive to negative for sec-butyl chloride + benzene. Although the VE values for an equimolar mixture of sec-butyl chloride + aromatics vary in the order benzene greater than m-xylene greater than toluene greater than p-xylene greater than o-xylene, for an equimolar mixture of tert-butyl chloride + aromatics, these follow the sequence benzene greater than m-xylene greater than p-xylene greater than toluene greater than o-xylene. Branching of the butyl group decreases the VE in the following order: n-butyl chloride greater than sec-butyl chloride greater than tert-butyl chloride