Contribution to study of the thermodynamics properties of mixtures containing 2-methoxy-2-methylpropane, alkanol, alkane

摘要: Abstract Excess molar enthalpies for the ternary system {x1 2-methoxy-2-methylpropane (MTBE) + x2 1-pentanol + (1 − x1 − x2) hexane} and involved binary mixture {x 1-pentanol + (1 − x) hexane}, have been measured at T = 298.15 K atmospheric pressure over whole composition range. We are not aware of existence previous experimental measurement excess enthalpy under study in literature currently available. Values were using a Calvet microcalorimeter. The results fitted by means different variable degree polynomials. contribution to was correlated with equation due Verdes et al. (2004), proposed Myers–Scott (1963) used fit this work. Smooth representations presented construct constant contours on Roozeboom diagrams. positive range composition. is asymmetric, its maximum displace toward high mole fraction decane. also exception located around rich compositions 1-pentanol, representation asymmetric. Additionally, group model UNIFAC model, versions Larsen (1987) [18] Gmehling (1993) [19] estimate values enthalpy. test predictive capability several empirical expressions estimating properties from results.