Excess properties of alcohol-water systems at 298.15 K

Özet

Dielectric constants $\varepsilon$, viscosities $\eta$, refractive indices n and densities d have been measured over the entire mole fraction range for the water - methyl, ethyl, n-propyl alcohol binary systems at 298.15 K. From the experimental data excess dielectric constants $ \varepsilon^E$, excess viscosities$\eta^E$ and Kirkwood correlation factors $g_k$ have been calculated and studied. Their behaviour suggests the existence of intermolecular interactions and plotted curves show that excess dielectric constant and $g_k$ values decrease with the increasing of carbon atom number, while excess viscosity increases.