Vapor-liquid equilibrium relations were measured for binary systems made of N,N-dimethylformamide with acrylonitrile or trichloroethylene at 98.66kPa by the dew-bubble point temperature method. Combining the dew point temperature curve and the bubble point one, vapor-liquid equilibrium relationships were obtained for the binary systems. Literature data are not available for the systems of the present study. The present experimental method does not require any analytical instrument for the vapor-liquid equilibrium measurements. For the correlation of the experimental data, the Wilson equation was applied.
Vapor-liquid equilibrium (VLE) data for the acetone-methanol-ethanol-1-propanol-water system were measured at atmospheric pressure , using a flow-type recirculation apparatus newly developed. In the present experiments, three mixtures of given compositions were fixed as pseudo-components; equilibrium vapor compositions for the liquid solutions made of a couple of pseudo-components were measured . The reliability of the VLE data obtained was confirmed with an area test presented in the present study .
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