Viscosities and Densities of Acetone-Benzene and Acetone-Acetic Acid Systems up to Their Normal Boiling Points.

Abstract

In a study of the effect of physical properties on the contact efficiency of distillation, various properties of selected binary liquid systems have been measured in these laboratories over a wide temperature range, and extrapolated to the boiling points. Properties of the acetone-water system (8, 9, 75), the methanoltoluene system (6), and the benzene-acetic acid system (7) have been reported. Two more acetone systems were of interest in the distillation study, one with benzene as the second component, and one with acetic acid. A few measurements of the viscosity and density of the acetone-benzene system at 20°and 25°C were reported (7, 2, 4, 13), but the properties at the boiling points of the solutions could not be estimated from these limited values. For acetone-acetic acid, again only a few scattered measurements could be located (3,77,12,17). REAGENTSBaker analyzed reagent grade (J. T. Baker Co., Phillipsburg, N. J.) benzene, acetone, and acetic acid were further purified for use. The purification procedures and the comparisons of the properties of the final products with reported values have been given (7, 10). In both cases, the properties of the final products were in close accord with those reported for very pure materials.

Steady streaming viscometry of Newtonian liquids in microfluidic devices

“…The average values of kinematic viscosity are represented by grey dashed lines in Figure 4. The kinematic viscosity of acetone was measured to be 3.52×10 −7 m 2 /s, which is within 12% of the expected value [36]. The kinematic viscosity of ethanol was measured to be 1.48×10 −6 m 2 /s, which is within 2.6% of the expected value [37].…”

“…The performance of our technique was compared against tabulated values of kinematic viscosity under similar temperature conditions [36][37][38]. The accuracy of our measurements ranged from within 2% to 12%, even for volatile liquids, such ethanol and acetone.…”

Excess molar volumes of (acetophenone+benzene, or toluene, or 1,3-xylene, or 1,3,5-trimethylbenzene) at temperatures (298.15 and 328.15) K

“…V E m become more negative at higher temperature. The same effect was observed with the (2-propanone + benzene) [7][8][9][10][11], (2-butanone + benzene) [12,13], (2-pentanone + benzene) [12], and (2-propanone + toluene) [14]. This behaviour can be attributed mainly to the specific interactions between unlike molecules of the systems.…”

Excess molar volumes of (propiophenone+benzene, or toluene, or ethylbenzene, or butylbenzene) at temperatures 298.15K and 328.15K

“…V E m become more negative at higher temperature. The same effect was observed with the (2-propanone + benzene) [8][9][10][11][12], (2-butanone + benzene) [13,14], (2-pentanone + benzene) [13], and (2-propanone + toluene) [15]. This behaviour can be attributed mainly to the specific interactions between unlike molecules of the systems.…”