Speed of Sound and Isentropic Compressibility of Aqueous Solutions of Pyrrolidine and Piperidine

2006 ◽  
Vol 51 (2) ◽  
pp. 722-724 ◽  
Author(s):  
Diego Gómez-Díaz ◽  
José M. Navaza
Keyword(s):  
Aqueous Solutions ◽  
Speed Of Sound ◽  
Isentropic Compressibility

scholarly journals Sound Velocities and Micellar Behaviour Studies of Dodecyltrimethylammonium Bromide in Aqueous Solutions at 295.15, 302.15 and 309.15 K

2015 ◽  
Vol 7 (2) ◽  
pp. 213 ◽  
Author(s):  
Md. Harun-Al-Rashid ◽  
Tania Tofaz ◽  
M. Islam ◽  
T. Biswas
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Speed Of Sound ◽  
Acoustic Impedance ◽  
Isentropic Compressibility ◽  
Dodecyltrimethylammonium Bromide ◽  
Solvent Interactions ◽  
Speeds Of Sound ◽  
Sound Velocities

Speed of sound, u, of dodecyltrimethylammonium bromide (DTAB) aqueous solutions has been determined at 295.15, 302.15 and 309.15 K. The speeds of sound, u, data have been used to estimate isentropic compressibility, Ks, apparent molal isentropic compressibility, φk(s), acoustic impedance, Z, molal sound of speed, Rm, and relative association, RA, of DTAB in aqueous solution. These parameters have been interpreted in terms of solute-solute and solute-solvent interactions and micellar behavior of DTAB.

scholarly journals Thermo Physical Properties for Binary Mixture of Dimethylsulfoxide and Isopropylbenzene at Various Temperatures

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Maninder Kumar ◽  
V. K. Rattan
Keyword(s):  
Refractive Index ◽  
Binary Mixture ◽  
Speed Of Sound ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Isentropic Compressibility ◽  
Experimental Measurements ◽  
Kister Equation ◽  
Thermo Physical Properties

Density, refractive index, speed of sound, and viscosity have been measured of binary mixture dimethylsulfoxide (DMSO) + isopropylbenzene (CUMENE) over the whole composition range at 298.15, 303.15, 308.15, and 313.15 K and atmospheric pressure. From these experimental measurements the excess molar volume, deviations in viscosity, molar refractivity, speed of sound, and isentropic compressibility have been calculated. These deviations have been correlated by a polynomial Redlich-Kister equation to derive the coefficients and standard error. The viscosities have furthermore been correlated with two or three parameter models, that is, herric correlation and McAllister model, respectively.

Experimental and Theoretical Characterization of Sonochemical Cells. Part 1. Cylindrical Reactors and Their Use to Calculate the Speed of Sound in Aqueous Solutions

2003 ◽  
Vol 107 (2) ◽  
pp. 306-320 ◽  
Author(s):  
Peter R. Birkin ◽  
Timothy G. Leighton ◽  
John. F. Power ◽  
Matthew D. Simpson ◽  
Aurore M. L. Vinçotte ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Speed Of Sound ◽  
Theoretical Characterization

scholarly journals Micellar Parameters of Aqueous Solutions of Tween 20 and 60 at Different Temperatures: Volumetric and Viscometric Study

2018 ◽  
Vol 2 (3) ◽  
pp. 34 ◽  
Author(s):  
Katarzyna Szymczyk ◽  
Magdalena Szaniawska ◽  
Anna Taraba
Keyword(s):  
Aqueous Solutions ◽  
Internal Pressure ◽  
Isentropic Compressibility ◽  
Bulk Water ◽  
Tween 20 ◽  
Hydration Numbers ◽  
Sorbitan Monolaurate ◽  
Different Temperatures ◽  
Tween 60 ◽  
Viscometric Study

Density, viscosity and speed of sound of aqueous solutions of nonionic surfactants such as polyoxyethylene (20) sorbitan monolaurate (Tween 20) and polyoxyethylene (20) sorbitan monostearate (Tween 60) at T = 293, 303 and 313 K are reported. From these measured values different parameters such as, for example, isentropic compressibility, molecular free length, acoustic impedance, primary hydration numbers and internal pressure have been calculated and employed to discuss molecular packing, structural alteration and molecular interactions. The variation in these parameters with temperature indicates that the mobility of surfactant molecules increases the disordered state of the liquid (surfactant + water) due to irregular packing of the molecules. Also, for Tween 20 solutions, more conversion to bulk water of the structured water molecules was observed, obtaining lower compressibilities and higher values of hydration numbers as well as internal pressure for a given T.

scholarly journals Ultrasonic studies on temperature dependence of ion solvent interactions of ionic liquid 1-butyl-2,3- dimethylimidazolium chloride in aqueous solutions of tetra-n-butylammonium bromide at T = (298.15 to 313.15) K

2020 ◽  
Vol 10 (2) ◽  
pp. 5259-5265
Keyword(s):  
Aqueous Solutions ◽  
Isentropic Compressibility ◽  
Effect Of Temperature ◽  
Ammonium Bromide ◽  
Nonlinear Parameters ◽  
Solvent Interactions ◽  
Acoustical Properties ◽  
Wada’S Constant ◽  
Rao’S Constant ◽  
Different Temperatures

The densities (ρ), and ultrasonic velocities (u) of 1-Butyl-2, 3-dimethylimmidazolium chloride,[bdmim]Cl in aqueous solutions of Tetra-n-butyl ammonium bromide over the complete range of concentrations has been calculated at different temperatures T= (298.15 to 313)K. Experimentally obtained values of ρ and u were used to calculate the parameters like acoustic impedance (Z), isentropic compressibility (βS), molar sound velocity (Rao’s constant) (R), molar compressibility (Wada’s constant)(W), intermolecular free length (Lf), co-efficient of thermal expansion (α), heat capacity ratio (γ), isothermal compressibility (βT) and nonlinearity parameters (B/A). The final results obtained were analyzed to understand the ion-solvent and ion-ion interaction so taking place in the solutions. Further, the effect of temperature on the ion solvent interactions was discussed. Ion-solvent interactions are affected by the thermo acoustical properties and by nonlinear parameters.

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