Study of structural effects of binary mixtures of Nitrobenzene and 2-Alcohols
الموضوعات : International Journal of Heterocyclic Chemistry
1 - Department of Chemistry, College of Science, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
الکلمات المفتاحية: Viscosity, Density, Free volume theory, Peng-Robinson equation,
ملخص المقالة :
Densities, structural effects and viscosities of binary nonelectrolyte systems including nitrobenzene + 2-propanol, 2-butanol and 2-pentanol at temperatures (293.15 to 323.15) K and normalatmospheric pressure were measured using an Anton-Paar SVM 3000 stabinger viscometer. Excess molar volumes and viscosity deviations Δη were calculated and correlated by the Redlich-Kister equation to estimate the standard uncertainty. These values are negative over the full range of composition for all studied mixtures. Free volume theory coupled with the Peng-Robinson equation of state was used to correlate liquidviscositiesofpure compounds and binary mixtures. The agreement between measured viscosity data and values calculated from this model is within experimental uncertainties
