Compressed Liquid Densities and Excess Molar Volumes of CO2 + Hexan-1-ol Mixtures from (313 to 363) K and Pressures up to 25 MPa
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Instituto Politécnico Nacional, ESIQIE, Laboratorio de Termodinámica, Edif. Z, Secc. 6, 1er Piso, UPALM Zacatenco, CP 07738, Lindavista, México, D.F., México
Abstract
Compressed liquid densities of hexan-1-ol and of CO2 (1) + hexan-1-ol (2) binary mixtures (at four different compositions, x1 = 0.1413, 0.2289, 0.3610, and 0.6673) have been measured from (313 to 363) K and pressures up to 25 MPa. A vibrating-tube densimeter was used to measure the experimental densities. The densities of hexan-1-ol were correlated with a short explicit volume equation and the Benedict−Webb−Rubin−Starling equation of state (BWRS EoS). Excess molar volumes were calculated using density values calculated with the BWRS EoS and the Span−Wagner EoS for hexan-1-ol and CO2, respectively.
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