Ultrasonic Studies and Densities Measurements in Binary Liquid Mixture of Toluene with 1,2-Dichloroethane at 303.15 K

Abstract

Ultrasonic studies and densities in binary liquid mixture of toluene with 1, 2-dichloroethane have been measured. Acoustic parameters like isentropic compressibility, intermolecular free length, available volume, molar volume, Nissan's parameter and their excess function have been calculated for this binary liquid mixture at 303.15 K. The corresponding excess functions are a better measure of the extent of interactions present between the component molecules of the system. It is used in so many fields of scientific researches in physics, chemistry, biology, medicines and industry. These properties also provide important information about molecular packing, molecular motion and the chemical nature of the component molecules.

Asphaltene Solutions Are Not Adequately Described by Popular Models of Solid Suspensions

“…As an additional example, Figure illustrates the nonideality of toluene solutions revealed by measurements of ultrasonic velocity (speed of sound). − Negative anomalies at small contents of solutes are clearly seen. Note that in the experimental data of Figures and there are no apparent correlations between the quantitative manifestations of negative anomalies and the solute properties (chemical nature, molecular weight, polarity, etc.).…”

“…ref 37 and references therein. 32 (2) n-alkoxyethanol with MW = 76, 31 (3) 1,2dichloroethane, 33 and (4) biphenyl. 34 Energy & Fuels Hence, it may be expected that, in the absence of the colloidally dispersed phase in superdilute asphaltene solutions, experimental measurements of viscosity and speed of sound would expose the above-discussed negative anomalies in the continuous, molecularly dispersed, liquid phase.…”

“…Relative speeds of sound in nonideal toluene solutions. Solutes: (A) n -alkoxyethanol with MW = 76; (B) (1) butylcyclohexane, (2) n -alkoxyethanol with MW = 76, (3) 1,2- dichloroethane, and (4) biphenyl …”