“…Vapor pressures for each of the three pure fluids and vapor liquid equilibria for each of the three binary mixtures have previously been recorded at temperatures between 523 and 598 K(1,2). Furthermore, enthalpy measurements for each of the pure fluids (3-6) for mixtures consisting of each of the three binary pairs (7)(8)(9) and for selected ternary mixtures at temperatures between 291 and 650 K and at pressures to 10 MPa have been reported (10). Modern process engineering calculations generally require both phase behavior and enthalpy estimation methods.…”