M. Kuus et al., EXCESS-ENTHALPIES FOR THE SYSTEMS O-XYLENE PLUS CYCLOHEXANOL PLUS PHENOL AND O-XYLENE PLUS CYCLOHEXANOL PLUS 1,3-BUTANEDIOL AT 318.15K, Journal of chemical and engineering data, 43(3), 1998, pp. 351-353
Excess molar enthalpies (H-E) at 318.15 K are reported for two ternary
systems, o-xylene + cyclohexanol + phenol and o-xylene + cyclohexanol
+ 1,3-butanediol, and for two constituent binaries formed by o-xylene
with phenol and 1,3-butanediol. The ternary system containing phenol
exhibits regions of both exothermic and endothermic mixing, H-E for th
e other ternary system are endothermic. Owing to partial miscibility i
n the o-xylene + 1,3-butanediol system, the ternary system containing
1,3-butanediol includes a region with two coexisting liquid phases; A
modified Redlich-Kister equation fitted to experimental results provid
es a satisfactory mathematical representation of H-E data for the o-xy
lene + cyclohexanol + 1,3-butanediol system.