Experimental study and modelling of volumetric properties, viscosities and refractive indices of binary liquid mixtures benzene + PEG 200/PEG 400 and toluene + PEG 200/PEG 400

Volume-related properties of thiophene and furan-2-carboxaldehyde phenylhydrazone derivatives in DMSO: A discussion about non-intrinsic contribution

“…Before measurements, the instrument was calibrated using bi-distilled and degassed water, dry air, benzene and DMSO. The densities for benzene (0.879010 g·cm −1 ) and DMSO (1.10056 g·cm −3 ) were in good agreement with published data [23,24,25,26,27] (See Table 2). …”

Thermodynamic characterization of binary mixtures of poly(propylene glycol) 425 with toluene and o-, m- and p-xylenes

“…Density ρ was measured with an Anton Paar DMA 5000 digital vibrating U-tube densimeter, refractive index nD using an automatic Anton Paar RXA 156 refractometer and viscosity η using a digital Stabinger viscometer (model SVM 3000/G2). Description of the apparatus is explained in detail in our previous work [12].…”

Prediction of excess molar volumes of selected binary mixtures from refractive index data

“…The predictions of V E from n D data in the temperature range 288.15-323.15 K (or 288.15-333.15 K) and at atmospheric pressure for 22 binary systems (the experimental data were taken from the literature [38][39][40][41][42] and from ongoing investigations) were realised using the three chosen Models I-III with incorporated L-L, D-G, Eyk, A-B, New and Ost mixing rules for the determination the refractive index. The results of V E calculation were assessed by the absolute maximum percentage average deviation PD max : For easier analysis, the investigated systems are classified in six groups of binary mixtures: acetone + alcohols, butyl lactate + alcohols, N-methyl-2-pyrrolidone + alcohols, PEGs + alcohols, pyridine + alcohols and PEGs + aromatics.…”

“…42 All of the analyzed systems showed negative excess molar volumes V E and negative Δn D values. For benzene+PEG 200 binary mixture, all the mixing rules and equations for the calculation of the excess molar volume showed unsatisfactory fits of the experimental data.…”