scholarly journals Study of Acoustical and Physico-chemical Properties for the Ternary Mixture of (Toluene+ Chlorobenzene + Cyclohexane) at 298.15 K Temperature

2021 ◽  
Vol 17 (2) ◽  
pp. 9-15
Author(s):  
SONU DWIVEDI ◽  
Keyword(s):  
Ultrasonic Velocity ◽  
Acoustic Impedance ◽  
Ternary Mixture ◽  
Chemical Properties ◽  
Isentropic Compressibility ◽  
Excess Properties ◽  
Acoustical Parameters ◽  
Free Length ◽  
Physico Chemical ◽  
Kister Equation

Ultrasonic velocity (U), density (ρ) for the ternary mixture of (Toluene + Chlorobenzene + Cyclohexane) in the various range of composition has been carried out at 298.15K. The observed data have been utilized to calculate various acoustical parameters like Isentropic compressibility (KS), Intermolecular free length (Lf) and acoustic impedance (Z). The various excess properties like excess ultrasonic velocity(UE ), excess acoustic impedance (ZE ), excess Isentropic compressibility (KS E ) and excess Inter molecular free length (Lf E ) have been calculated and using standard relations to the Redlich-Kister equation. The trend of acoustical and physicochemical parameters confirm the dynamics of molecules at temperature and the magnitude of intermolecular interactions among the constituents of the mixture always reflects the nature of substance. The variations in sign and values of these parameters are help us to know the interaction between component molecules and structural arrangement of the liquid mixture.

scholarly journals Physico-chemical properties of binary systems involving modifier (methanol or propionic acid) and an acidic extractant di (2-ethylhexyl) phosphoric acid (DEHPA): volumetric, acoustic and viscometric routes

2020 ◽  
Vol 10 (4) ◽  
pp. 5880-5885
Keyword(s):  
Solvent Extraction ◽  
Molar Volume ◽  
Propionic Acid ◽  
Binary Mixtures ◽  
Acoustic Impedance ◽  
Molecular Interaction ◽  
Chemical Properties ◽  
Isentropic Compressibility ◽  
Intermolecular Free Length ◽  
Physico Chemical

In solvent extraction, a suitable modifier, basically polar liquid is used with extractant like DEHPA, TBP, TOPO and MIBK to enhance the efficiency in extraction processes. This paper is related to the study of physico-chemical properties of polar – polar binary mixtures at 303.15K and 0.1 MPa. Molar volume, free volume, isentropic compressibility, intermolecular free length, specific acoustic impedance, relaxation time, Rao’s constant, Wada’s constant, absorption coefficient have been calculated from the experimentally measured data of density, ultrasonic velocity and viscosity of pure components and binary mixtures of methanol/ propionic acid + DEHPA. In addition, excess molar volume, excess Gibb’s energy of activation of viscous flow, deviations in viscosity, isentropic compressibility, free volume, intermolecular free length and acoustic impedance were also computed from the experimental data. The observed variations of excess/deviation functions with the composition of DEHPA have been discussed in terms of molecular interaction between unlike molecules in two binary mixtures due to chemical, physical and structural effects. It is found that the molecular interaction of methanol with extractant DEHPA is better than that of propionic acid and so methanol may be used as a suitable modifier with DEHPA in the solvent extraction process.

scholarly journals Excess Acoustical Properties and Molecular Interactions in Ternary Liquid Mixtures of 3(Meta)Methoxy Phenol, 1 Propanol and n- Hexane at 303 K, 308 K & 313 K using Ultrasonic Techniques

2019 ◽  
Vol 8 (10S) ◽  
pp. 99-105 ◽  
Keyword(s):  
Internal Pressure ◽  
Free Volume ◽  
Ultrasonic Velocity ◽  
Molecular Interactions ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Ternary Mixtures ◽  
Excess Properties ◽  
Acoustical Parameters ◽  
Free Length

The Ultrasonic velocity(U), density(ρ), and viscosity(η) have been measured experimentally for the ternary liquid mixtures of 3(meta) methoxy phenol(MMP), 1 propanol and n hexane at various temperatures viz., 303 K, 308 K and 313 K at constant frequency of 2 MHz. for different concentrations ranges from 0.001M to 0.01M. The thermodynamic and acoustical parameters such as adiabatic compressibility(β), Rao constant(R), absorption coefficient (α/f2 ), internal pressure(πi), cohesive energy(CE), free volume(Vf), free length(Lf), acoustic impedence(z), available volume(Va), viscous relaxation time and Lenard Jones potential were calculated from the experimental data. The various excess properties including excess Ultrasonic velocity, excess acoustic impedence, excess free length, excess adiabatic compressibility, excess free volume and excess internal pressure were also computed. The variation of these excess parameters with respect to concentration and temperatures have been discussed in the light of molecular interaction. The molecular interactions were predicted based on the results obtained for ultrasonic velocities of different concentrations of the ternary mixtures at different temperatures.

scholarly journals Density, Viscosity and Ultrasonic Velocity of Polyethylene Glycol

2021 ◽  
Vol 16 (2) ◽  
Author(s):  
Richa Saxena ◽  
SC Bhatt ◽  
Manish Uniyal ◽  
S C Nautiyal
Keyword(s):  
Relaxation Time ◽  
Polyethylene Glycol ◽  
Polymer Solution ◽  
Ultrasonic Velocity ◽  
Acoustic Impedance ◽  
Adiabatic Compressibility ◽  
Acoustical Parameters ◽  
Free Length ◽  
Intermolecular Free Length ◽  
Ultrasonic Interferometer

Ultrasonic velocity, density, and viscosity of polyethylene glycol have been measured for the solution in water at concentration range of 0.3% to 1% at temperature 50oC. Ultrasonic velocity has been measured using ultrasonic interferometer at 1MHz frequency. By using the values of ultrasonic velocity, density, and viscosity, various acoustical parameters like adiabatic compressibility, acoustic impedance, intermolecular free length, and relaxation time have been calculated. The change in these acoustical parameters is explained in terms of solutesolvent interaction in a polymer solution.

scholarly journals Physico-chemical and spectroscopic investigation of flavonoid dispersed C n TAB micelles

2022 ◽  
Vol 9 (1) ◽  
Author(s):  
Dileep Kumar ◽  
K. M. Sachin ◽  
Naveen Kumari ◽  
Ajaya Bhattarai
Keyword(s):  
Chemical Properties ◽  
Isentropic Compressibility ◽  
Solvent System ◽  
Hexadecyltrimethylammonium Bromide ◽  
Tetradecyltrimethylammonium Bromide ◽  
Surfactant Micelles ◽  
Surface Excess Concentration ◽  
Physico Chemical ◽  
Non Covalent Interactions ◽  
Covalent Interactions

In this study, kaempferol (0.2 m/mmol kg −1 ) dispersed cationic surfactant micelles were prepared as a function of alkyltrimethylammonium bromide (C n TAB) hydrophobicity (C = 12 to C = 16). The dispersion study of kaempferol in different C n TAB, i.e. dodecyltrimethylammonium bromide (C = 12), tetradecyltrimethylammonium bromide (C = 14) and hexadecyltrimethylammonium bromide (C = 16), was conducted with the physico-chemical properties of density, sound velocity, viscosity, surface tension, isentropic compressibility, acoustic impedance, surface excess concentration and area occupied per molecule and thermodynamic parameters Gibbs free energy, enthalpy and activation energy measured at 298.15 K. These properties were measured with varying concentration of C n TAB from 0.0260 to 0.0305 mol kg −1 in a 10% (w/w) aqueous dimethyl sulfoxide solvent system. The variations in these measured properties have been used to infer the kaempferol dispersion stability via hydrophobic–hydrophilic, hydrophilic–hydrophilic, van der Waals, hydrogen bonding and other non-covalent interactions.

Acoustical Studies on CuO – Diethyl Amine + Isopropanol Binary Nanofluids at Various Temperatures

2015 ◽  
Vol 1086 ◽  
pp. 107-110
Author(s):  
B. Rohini ◽  
Solomon Jeevaraj A. Kingson
Keyword(s):  
Experimental Data ◽  
Acoustic Impedance ◽  
Liquid Mixtures ◽  
Acoustical Parameters ◽  
Free Length ◽  
Binary Liquid ◽  
Diethyl Amine ◽  
Ultrasonic Sound ◽  
Different Temperatures ◽  
Ultrasonic Parameters

Ultrasonic parameters of CuO: Diethylamine-Isopropaonol binary nanofluids at six different concentrations have been reported at three different temperatures like 298K, 308K and 318K. The acoustical parameters such as Ultrasonic sound velocity (v), Compressibility (β), Inter molecular free length (Lf), Acoustic impedance (Z) are calculated from experimental data. The variation of these parameters with composition of the mixture helps us in understanding the nature and extent of interaction between particles and the binary liquid mixtures.KeywordsUltrasonic velocity, Compressibility, Acoustic impedance, Inter molecular free length, Nanofluids

scholarly journals Physico-Chemical Properties of Binary Mixture of 2,3-Dichloroaniline and Carbon Tetrachloride at 300 K

2021 ◽  
Vol 33 (10) ◽  
pp. 2386-2392
Author(s):  
Mahendra Kumar ◽  
Chandreshvar Prasad Yadav ◽  
Dharmendra Kumar Pandey ◽  
Dhananjay Singh
Keyword(s):  
Carbon Tetrachloride ◽  
Binary Mixture ◽  
Ultrasonic Velocity ◽  
Mole Fraction ◽  
Thermal Relaxation ◽  
Chemical Properties ◽  
Physical Parameters ◽  
Estimated Parameters ◽  
Physico Chemical ◽  
Gibb’S Free Energy

The physico-chemical properties of binary mixture of 2,3-dichloroaniline (2,3-DCA) and carbon tetrachloride (CCl4) have been studied in the present work by the measurement of density, viscosity, ultrasonic velocity and estimation of thermo-physical parameters at 300 K. The density, compressibility, free length, relative association and free volume were found to increase while viscosity, ultrasonic velocity, acoustic impedance and internal pressure were received to decay with an increase in mole fraction of solvent in the binary mixture. The thermal relaxation time and Gibb’s free energy were found to decay with a slow rate up to 50% mole fraction of the solvent, after that these quantities decay very fast in chosen binary mixture. The ultrasonic absorption was also found to increase slowly up to 50% mole fraction of solvent and after that a fast decay was observed in the present binary mixture. The molecular interaction, structural ordering, stability and related features of the prepared binary mixture were also analyzed based on measured and estimated parameters.

scholarly journals Ultrasonic Investigation of Molecular Interactions in Binary Mixtures at 303 K

2009 ◽  
Vol 6 (1) ◽  
pp. 138-140 ◽  
Author(s):  
R. Nithya ◽  
S. Nithiyanantham ◽  
S. Mullainathan ◽  
M. Rajasekaran
Keyword(s):  
Free Volume ◽  
Binary Mixtures ◽  
Ultrasonic Velocity ◽  
Molecular Interactions ◽  
Molecular Interaction ◽  
Binary Systems ◽  
Adiabatic Compressibility ◽  
Acoustical Parameters ◽  
Free Length ◽  
Ultrasonic Investigation

The ultrasonic velocity, density and viscosity at 303 K have been measured in the binary systems of toluene with benzene ando-xylone with benzene. The acoustical parameters such as adiabatic compressibility, free length, free volume and acoustical impedance are calculated. The results are interpreted in terms of molecular interaction between the components of the mixtures

scholarly journals Excess Transport Properties of Binary Mixtures of Quinoline with Xylenes at Different Temperatures

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Sk. Fakruddin ◽  
Ch. Srinivasu ◽  
B. R. Venkateswara Rao ◽  
K. Narendra
Keyword(s):  
Ultrasonic Velocity ◽  
Acoustic Impedance ◽  
Adiabatic Compressibility ◽  
Polynomial Equation ◽  
Liquid Mixtures ◽  
Excess Functions ◽  
Free Length ◽  
Intermolecular Free Length ◽  
Excess Parameters ◽  
Different Temperatures

The ultrasonic velocity and density of binary liquid mixtures of quinoline with o-xylene, m-xylene, and p-xylene have been measured over the entire range of composition at = 303.15, 308.15, 313.15, and 318.15 K. Using these data, various parameters like adiabatic compressibility (β), intermolecular free length (), and acoustic impedance () and some excess parameters like excess adiabatic compressibility (), excess intermolecular free length (), excess acoustic impedance (), and excess ultrasonic velocity () have been calculated for all the three mixtures. The calculated deviations and excess functions have been fitted to Redlich-Kister polynomial equation. The observed deviations have been explained on the basis of the intermolecular interactions present in these mixtures.

THERMO PHYSICAL PROPERTIES OF TERNARY MIXTURES OF 1-HEXANOL/1- OCTANOL CONTAINING N-N-DIMETHYLFORMAMIDE AND TOLUENE AT 303.15 K

2021 ◽  
pp. 41-43
Author(s):  
T. Sumathi
Keyword(s):  
Experimental Data ◽  
Molecular Interactions ◽  
Acoustic Impedance ◽  
Composition Range ◽  
Adiabatic Compressibility ◽  
Ternary Mixtures ◽  
Acoustical Parameters ◽  
Free Length ◽  
Intermolecular Free Length ◽  
Thermo Physical Properties

In the present work, ultrasonic velocity (u), viscosity (η) and density (ρ) of ternary mixtures of 1-hexonal and 1-octanol with dimethylformamide in toluene at 303.15 K have been measured over the entire composition range. From the experimental data, acoustical parameters such as adiabatic compressibility (β), intermolecular free length (L ), free volume (V ), acoustic impedance (Z), excess adiabatic compressibility , excess free length , excess free f f E E (b ) (L )f volume and excess acoustic impedance have been computed. The variation of these properties with composition are E E (V ) (Z ) f discussed in terms of molecular interactions between unlike molecules of the mixtures.

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