ENTHALPY INCREMENTS OF (XCH(3)(CH2)(3)CH3-X)CH3OH) AND OF 34CH(3)(CH2)(3)CH3+0.3333CH(3)OH+0.3333(CH3)(2)CO) BETWEEN THE TEMPERATURES 291 KAND 610 K AT PRESSURES TO 10 MPA((1)

Enthalpy-increment measurements were made on {xCH(3)(CH2)(3)CH3 + (1 - x)CH3OH} and 34CH(3)(CH2)(3)CH3+0.3333CH(3)OH+0.3333(CH3)(2)CO} along isobars from p = 500 kPa to p = 10 MPa, in the temperature range 291 K to 610 K, using a reference-fluid boil-off calorimeter. For {xCH(3)( CH2)(3)CH3+(1 - x)CH3OH}, measurements were made at x = 0.25 and x = 0 .75. In addition to the direct calorimetric results, the equation for the enthalpy increments of the liquid and vapor, as well as enthalpy-i ncrement behavior in the supercritical region, are reported.