Densities, Surface Tensions, and Refractive Indices for the Binary and Tenary Mixtures of Ethanol, tert-Butanol, and Dimethyl Carbonate of Fuel Oxygenates

• Main Authors: Chen, Hong-Ru, 陳虹如
• Other Authors: Tu, Chien-Hsun
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/372vsu

碩士 === 靜宜大學 === 應用化學系 === 105 === In this study, the physical properties such as density, surface tension, and refractive index were conducted for the three binary systems ( ethanol + tert-butanol, ethanol + dimethyl carbonate, and tert-butanol + dimethyl carbonate) and the ternary system of ethanol + tert-butanol + dimethyl carbonate. The experiments for the three binary systems at the temperatures (298.15, 308.15 and 318.15 K) and the ternary system at the temperature of 298.15 K were performed under atmospheric pressure. The excess molar volumes (VE), deviations in the surface tension (Δσ), mole fraction deviations in the refractive index (ΔxnD), and volume-fraction deviations in the refractive index (ΔφnD) for the mixtures were derived from the experimental physical property data of densities (ρ), surface tension (σ), and refractive index (nD). The binary data of VE, Δσ, ΔxnD and ΔφnD were correlated as a function of mole fraction using the Redlich-Kister equation. The ternary excess data of VE, Δσ, ΔxnD and ΔφnD were correlated with the equations of Jasiński and Malanowski, Cibulka, Singh et al., Pintos et al., Calvo et al., Mascato et al. and their deviation equation. The values of these ternary excess data were predicted from binary results using the equations of Kohler, Jacob and Fitzner, Scatchard et al., Tsao and Smith, Toop, and Colinet. The result is reasonally close to the experimental ones.