Vapor–Liquid Equilibrium and Excess Enthalpy Data for Systems Containing N,N-Dimethylacetamide

Abstract

Isothermal P–x vapor–liquid equilibrium and excess enthalpy (H E) data were experimentally determined for the 10 binary systems hexane, heptane, 1-octene, benzene, toluene, ethanol, methanol, ethyl acetate, dibutyl ether, and dichloromethane with N,N- dimethylacetamide using the static synthetic method and isothermal flow calorimetry, respectively. The experimental data from this work together with data taken from literature were used for the extension of the group contribution method Modified UNIFAC (Dortmund).

A United Chemical Thermodynamic Model: COSMO-UNIFAC

“…Vapor–liquid equilibrium of the (a) methanol (1) + DMAC (2), (b) benzene (1) + DMAC (2), (c) allyl alcohol (1) + EG (2), and (d) acetic acid (1) + NMP (2) systems. Black solid line, calculated results by UNIFAC model; blue dashed line, calculated results by UNIFAC(0) model; red solid line, calculated results by COSMO-RS-UNIFAC model; red dashed line, calculated results by COSMO-SAC-UNIFAC model; ■, experimental data …”

Measurement and Correlation of Isobaric VLE Data for 1-Propanol + Water + 1-Butyl/Decyl-3-methylimidazole Bromide/Nitrate ILs at 101.33 kPa

“…When choosing extractants, not only their chemical properties were considered, but it was also imperative that their impacts on the economy and environment were thoroughly evaluated. In recent years, ionic liquids (ILs) have been the focus of researchers as entertainers, thanks to their unique physical properties, such as low toxicity and nonvolatility, as well as their excellent solubility in inorganic and organic substances, outstanding thermal stability, and chemical resilience, marking them as a new type of extraction medium. − Thus, ILs were chosen as entrainers for the azeotropic separation of 1-propanol and water. Currently, the amino ILs were investigated to separate the azeotropic system of 1-propanol–water and isopropanol–water in the previous reference .…”