Ultrasonic Studies and Molecular Interactions of N, N-Dimethyl Formamide and 1-Butanol with n-Hexane at Different Temperatures 303K ,308K and 313K.

2019 ◽  
Vol 1 (3) ◽  
pp. 1-7
Author(s):  
Syed Ibrahim P.S. ◽  
Chidambaravinayagam S ◽  
Senthil Murugan J ◽  
Edward Jeyakumar J
Keyword(s):  
Experimental Data ◽  
Absorption Coefficient ◽  
Molecular Interactions ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Dimethyl Formamide ◽  
Ultrasonic Velocities ◽  
Acoustical Parameters ◽  
Constant Frequency ◽  
Different Temperatures

The Ultrasonic velocity(U), density(?), and viscosity(?) have been measured for the ternary liquid mixtures of N,N-Dimethyl Formamide (NNDMF),   1 butanol and n hexane at various temperatures viz., 303 k,308 k and 313 k at constant frequency 2 MHz. for different concentrations ranges from 0.001M to 0.01M. The acoustical parameters such as adiabatic compressibility(?), Rao constant(R), absorption coefficient (?/f2), internal pressure(?i), cohesive energy(CE), free volume(Vf), free length(Lf) and acoustic impedence(z), were calculated from the experimental data. These parameters in accordance with their ultrasonic velocities corresponding to different concentrations were discussed.

scholarly journals Acoustical Studies of Binary Liquid Mixtures of p-Chlorotoluene in Benzene at Different Temperatures

2014 ◽  
Vol 29 ◽  
pp. 25-37 ◽  
Author(s):  
G. Pavan Kumar ◽  
Ch. Praveen Babu ◽  
K. Samatha ◽  
A.N. Jyosthna ◽  
K. Showrilu
Keyword(s):  
Molecular Interactions ◽  
Molecular Interaction ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Ultrasonic Velocities ◽  
Acoustical Parameters ◽  
Binary Liquid ◽  
Wada’S Constant ◽  
Rao’S Constant ◽  
Different Temperatures

Ultrasonic velocities (U), densities (ρ), and coefficient of viscosities (η) are measured for binary mixtures containing (i) p-chlorotoluene and (ii) benzene at 303.15 K, 308.15 K, 313.15 K and 318.15 K to understand the molecular interaction. Various acoustical parameters such as adiabatic compressibility (βad), free length (Lf), acoustic impedance (Z), free volume (Vf), molar volume (Vm), Rao’s constant (R), Wada’s constant (W) and internal pressure (πi), are calculated from the measured values of U, ρ, and η. The trend in acoustical parameters also substantiates to asses strong molecular interactions.

scholarly journals Study of Acoustical Parameters in Binary Liquid Mixture Containing 1-Butanol and Hexane at Temperatures 313.15 K, 318.15 K and 323.15 K

2013 ◽  
Vol 18 ◽  
pp. 1-7
Author(s):  
C.H. Srinivasu ◽  
K. Anil Kumar ◽  
S.K. Fakruddin ◽  
K. Narendra ◽  
T. Anjaneyulu
Keyword(s):  
Experimental Data ◽  
Molecular Interactions ◽  
Acoustic Impedance ◽  
Entire Range ◽  
Liquid Mixture ◽  
Adiabatic Compressibility ◽  
Binary Liquid Mixture ◽  
Acoustical Parameters ◽  
Binary Liquid ◽  
Different Temperatures

The values of ultrasonic velocity (u), density (ρ), and viscosity (η) have been measured experimentally in the binary liquid mixture containing 1-butanol and hexane over the entire range of composition at different temperatures 313.15 K, 318.15 K and 323.15 K. This experimental data have been used to calculate the acoustical parameters such as adiabatic compressibility (β), free length (Lf), molar volume (Vm) and acoustic impedance(z). The results have been qualitatively used to explain the molecular interactions between the components of the liquid mixture.

scholarly journals Studies of Densities, Viscosities and Ultrasonic Speeds of Binary Mixtures Containing Isopropyl Alcohol and Ketones at Different Temperatures

2013 ◽  
Vol 15 ◽  
pp. 151-158 ◽  
Author(s):  
S.S.J. Srinivas ◽  
B. Tulasi Koteswari Bai ◽  
K. Babu Rao ◽  
K. Narendra ◽  
M. Sarath Babu
Keyword(s):  
Isopropyl Alcohol ◽  
Methyl Isobutyl Ketone ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Methyl Isobutyl ◽  
Ultrasonic Velocities ◽  
Acoustical Parameters ◽  
Isobutyl Ketone ◽  
Binary Liquid ◽  
Different Temperatures

The densities, viscosities and ultrasonic velocities of binary liquid mixtures of Isopropyl alcohol with acetophenone and methyl isobutyl ketone (MIBK) have been measured at temperatures 298.15 and 308.15 K over the entire range of mole fraction. From these data, acoustical parameters such as adiabatic compressibility (β), free volume (Vf) and free length (Lf) have been estimated using the standard relations. The results are interpreted in terms of molecular interactions present in the mixtures.

scholarly journals Ultrasonic Study of Molecular Interaction in Binary Liquid Mixtures of n-Hexane with Alcohols

2013 ◽  
Vol 5 ◽  
pp. 59-71 ◽  
Author(s):  
N. Santhi ◽  
P.L. Sabarathinam ◽  
G. Alamelumangai ◽  
J. Madhumitha ◽  
M. Emayavaramban
Keyword(s):  
Experimental Data ◽  
Molar Volume ◽  
Ultrasonic Velocity ◽  
Molecular Interactions ◽  
Molecular Interaction ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Acoustical Parameters ◽  
Binary Liquid ◽  
Intermolecular Free Length

Ultrasonic velocity, viscosity and density of alcohol[s] in n-hexane have been measured at various temperatures in the range of 303.15 - 318.15K. From the experimental data, the acoustical parameters such as molar volume, adiabatic compressibility, intermolecular free length and their excess values have been computed and presented as functions of compositions. The deviations from ideality of the acoustical parameters are explained on the basis of molecular interactions between the components of the mixtures. The variations of these parameters with composition of the mixture suggest the strength of interactions in these mixtures.

scholarly journals Ultrasonic Studies of Molecular Interactions in Organic Binary Liquid Mixtures

2010 ◽  
Vol 7 (s1) ◽  
pp. S217-S222
Author(s):  
S. Thirumaran ◽  
T. Alli ◽  
D. Priya ◽  
A. Selvi
Keyword(s):  
Experimental Data ◽  
Hydrogen Bonding ◽  
Internal Pressure ◽  
Ultrasonic Velocity ◽  
Molecular Interactions ◽  
Molecular Interaction ◽  
Adiabatic Compressibility ◽  
Liquid Mixtures ◽  
Acoustical Parameters ◽  
Binary Liquid

The ultrasonic velocity, density and viscosity have been measured for the mixtures of 1-alkanols such as 1-propanol and 1-butanol withN-Ndimethylformamide (DMF) at 303 K. The experimental data have been used to calculate the acoustical parameters namely adiabatic compressibility (β), free length (Lf), free volume (Vf) and internal pressure (πi). The excess values of the above parameters are also evaluated and discussed in the light of molecular interaction existing in the mixtures. It is obvious that there is a formation of hydrogen bonding between DMF and 1-alkanols. Further, the addition of DMF causes dissociation of hydrogen bonded structure of 1-alkanols. The evaluated excess values confirm that the molecular association is more pronounced in system-II comparing to the system-I.

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

2010 ◽  
Vol 7 (2) ◽  
pp. 353-356 ◽  
Author(s):  
S. Mullainathan ◽  
S. Nithiyanantham
Keyword(s):  
Experimental Data ◽  
Internal Pressure ◽  
Molecular Interactions ◽  
Molecular Interaction ◽  
Binary Systems ◽  
Adiabatic Compressibility ◽  
Acoustical Parameters ◽  
Intermolecular Free Length ◽  
Wada’S Constant ◽  
Rao’S Constant

The ultrasonic velocity, density and viscosity at 303 K have been measured in the binary systems of 1,4-dioxane and acetone with water. From the experimental data, various acoustical parameters such as adiabatic compressibility (β), intermolecular free length (Lf), free volume (Vf), internal pressure (πi), Rao’s constant (R), Wada’s constant (W) and specific acoustical impedance (Z) were calculated. The results are interpreted in terms of molecular interaction between the components of the mixtures.

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 Thermo-Acoustical Study of Biologically Active 1,1’-Bis(3-Methyl-4-Carboxyethylphenoxy) Cyclohexane at Four Different Temperatures

2015 ◽  
Vol 47 ◽  
pp. 1-14 ◽  
Author(s):  
Bhavin. B. Dhaduk ◽  
Parsotam H. Parsania
Keyword(s):  
Molecular Interactions ◽  
Adiabatic Compressibility ◽  
Free Path Length ◽  
Linear Increase ◽  
Biologically Active ◽  
Acoustical Parameters ◽  
Free Energy Of Activation ◽  
Different Temperatures ◽  
Entropy Of Activation ◽  
Acoustical Study

Density (ρ), viscosity (η), ultrasonic speed (U), and thermo-acoustical parameters such as specific acoustical impedance (Z), adiabatic compressibility (κa), internal pressure (π), free volume (Vf), inter molecular free path length (Lf), Van der Waals constant (b), viscous relaxation time (τ), classical absorption coefficient (α/f2)cl, Rao’s molar sound function (Rm), solvation number (Sn), Gibbs free energy of activation (ΔG*), enthalpy of activation (ΔH*) and entropy of activation (ΔS*) of biologically active 1,1’-bis (3-methyl-4-carboxyethylphenoxy) cyclohexane (BMCPC) in 1,4-dioxane (DO), ethyl acetate (EA), tetrahydrofuran (THF) have been studied at four different temperatures: 298, 303, 308 and 313 K to understand the molecular interactions in the solutions. A good to excellent correlation between a given parameter and concentration is observed at all temperatures and solvent systems studied. Linear increase or decrease [except (α/f2)cl ] of acoustical parameters with concentration and temperature indicated the existence of strong molecular interactions. ΔG* decreased linearly with increasing concentration and temperature in DO and EA systems and increased with temperature in THF system. ΔH* and ΔS* are found practically concentration independent in case of DO and EA system but both are found concentration dependent in THF system.

scholarly journals Study of Molecular Interactions in Ternary Liquid Mixtures

2016 ◽  
Vol 63 ◽  
pp. 77-82
Author(s):  
Ch. Kavitha ◽  
A. Ratnakar ◽  
Kolla Narendra
Keyword(s):  
Experimental Data ◽  
Molecular Interactions ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Liquid Mixtures ◽  
Ternary Mixtures ◽  
Ultrasonic Velocities ◽  
Excess Parameter ◽  
Parameter Values

The ultrasonic velocities and densities of ternary mixtures of quinolone with toluene and methanol as common compound, including those of pure liquids, over the entire composition range were measured at temperatures (303.15, 308.15, 313.15 and 318.15) K and atmospheric pressure. From the experimental data, excess molar volume VmE, excess ultrasonic velocity uE and excess acoustic impedance ZE were calculated. The variation these parameters with composition and temperature of the mixtures are discussed in terms of molecular interactions in these mixtures. All the calculated excess parameter values were found to be positive and negative at each temperature studied.

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