Experimental densities, refractive indices, and speeds of sound of 12 binary mixtures containing alkanes and aromatic compounds at T=313.15K

Estimation of excess molar volumes and theoretical viscosities of binary mixtures of benzene + n-alkanes at 298.15 K

“…For each system studied it was observed that the excess molar volume is slightly skewed towards the benzene-rich region of the mole fraction. Calculated values of V E m compare well with those reported by Peńa and Delgado [16] for all mixtures, Calvar et al [17] for benzene ? n-hexane, ?n-octane, and Letcher and Perkins [18] for benzene ?…”

“…The predicted values of viscosities of the binary mixtures, using Eqs. (13), (14), (16), (17), (18), (19) and (24), including standard deviation, at 298.15 K were compared with the experimentally measured values, and results are presented in terms of viscosity deviations (Dg) ( Table 5).…”

(Liquid+liquid) equilibria for ternary mixtures of (alkane+benzene+[EMpy] [ESO4]) at several temperatures and atmospheric pressure

“…The best results were achieved using the density instead refractive index, according to other authors [1,28,29]. The composition of the upper phase, formed by binary mixture (alkane + benzene), was determined by density using the density composition curve of this binary mixture published previously [30].…”

Excess molar volumes, densities and P–T–x phase equilibria for binary mixtures of benzene + toluene, benzene +N-methylformamide (NMF), heptane + octane, toluene + m-xylene and toluene + NMF at 333.15 K and 353.15 K

“…Fig. 2 shows a comparison of liquid phase density in this study at 313.15 K with that of Calvar et al (2009) for the nonane + benzene mixture at 313.15 K. There is a difference of AE3% between our experimental data and those of Calvar et al indicated that liquid densities of nonane and benzene are 0.7022 g/cm 3 and 0.8574 g/ cm 3 at 313.15 K under atmospheric pressure, respectively. In our study, experimental liquid phase composition (x) was obtained by using a corresponding equation of x = a r + b from the measured density (r) at known liquid phase composition.…”

“…Calvar et al (2009) had measured the density for a binary mixture of nonane + benzene at 313.15 K and at atmospheric pressure. Their experimental results had indicated that excess molar volume of the liquid mixture is slightly positive.…”