Vapor-liquid equilibria for tetrachloromethane + a linear mono-, di-, or triether (diethyl ether, dipropyl ether, dibutyl ether, methyl butyl ether, ethyl butyl ether, 1,2-dimethoxyethane, 1,2-diethoxyethane, di(ethylene glycol) dimethyl ether) or an acetal (dimethoxymethane, diethoxymethane) were determined at 298.15 K by head-space gas chromatographic analysis of the vapor phase directly withdrawn from an equilibration apparatus. Excess molar Gibbs energies GE for the investigated mixtures were determined by a least-squares treatment of the equilibrium data. The GE values are generally negative and, though small, reflect effects due to (i) chain lengthening, (ii) position of the oxygen atom in the chain structure of monoethers, and (iii) distance of two -O-groups in diethers or acetals.
Isothermal vapor-liquid equilibria of tetrachloromethane + linear ether or acetal mixtures at 298.15 K
TINE', MARIA ROSARIA
1990-01-01
Abstract
Vapor-liquid equilibria for tetrachloromethane + a linear mono-, di-, or triether (diethyl ether, dipropyl ether, dibutyl ether, methyl butyl ether, ethyl butyl ether, 1,2-dimethoxyethane, 1,2-diethoxyethane, di(ethylene glycol) dimethyl ether) or an acetal (dimethoxymethane, diethoxymethane) were determined at 298.15 K by head-space gas chromatographic analysis of the vapor phase directly withdrawn from an equilibration apparatus. Excess molar Gibbs energies GE for the investigated mixtures were determined by a least-squares treatment of the equilibrium data. The GE values are generally negative and, though small, reflect effects due to (i) chain lengthening, (ii) position of the oxygen atom in the chain structure of monoethers, and (iii) distance of two -O-groups in diethers or acetals.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
