Refractive Indices and Densities of the System Acetone + Benzene + Cyclohexane at 298.15 K. Changes of Refractivity and of Volume on Mixing

Abstract

Refractive index and density for (acetone + benzene + cyclohexane) at 298.15 K are reported. Changes of refractivity and of volume on mixing over the composition range were derived. Relations for predicting these changes were established and analyzed.

Viscosity of the binary systems 2-methyl-2-propanol with n-alkanes at T=(303.15, 308.15, 313.15, 318.15 and 323.15)K: Prediction and correlation – New UNIFAC–VISCO interaction parameters

“…The temperature in the cell was regulated with the uncertainty of ±0.01 K with a built in solid-state thermostat. To minimize the errors in composition all mixtures were prepared by mass, with a Mettler AG 204 balance with a precision 1 × 10 −4 , using the cell and the procedure described previously [20]. The uncertainty of the mole fraction calculation was less than ±1 × 10 −4 .…”

Temperature Dependence of Densities and Excess Molar Volumes of the Ternary Mixture (1-Butanol + Chloroform + Benzene) and its Binary Constituents (1-Butanol + Chloroform and 1-Butanol + Benzene)

“…To minimize the errors in composition, all mixtures were prepared by mass using the cell and the procedure described previously [19,20] and a Mettler AG 204 balance with a precision of 1 × 10 −4 g. The uncertainty of the mole fraction calculation was less than ±1 × 10 −4 . All molar quantities were based on the IUPAC relative atomic mass table.…”

Modeling of Volumetric Properties of Organic Mixtures Based on Molecular Interactions

“…In order to minimize evaporation of the volatile solvents and to avoid the errors in composition, all mixtures presented in this paper were prepared using the cell and the procedure described previously (Radojković et al, 1976;Tasić et al, 1995). The mixtures were prepared by mass using a Mettler AG 204 balance, with a precision of 110 -4 g. The experimental uncertainty in the density was about ±110 -2 kgm -3 , and the uncertainty in excess molar volume has been estimated at ±310 -9 m 3 mol -1 .…”