ViscosityBCoefficients and Partial Molar Volumes of Tetrabutylammonium Bromide in γ-Butyrolactone + Water at Different Temperatures

2008 ◽  
Vol 53 (3) ◽  
pp. 667-669
Author(s):  
Ahlam M. Farhan ◽  
Rasha M. Daadosh ◽  
Akl M. Awwad
Keyword(s):  
Tetrabutylammonium Bromide ◽  
Partial Molar Volumes ◽  
Molar Volumes ◽  
Different Temperatures

scholarly journals Study of Thermodynamic and Transport Properties of Glycine, Diglycine, and Triglycine in Aqueous Tartrazine at Different Temperatures

2009 ◽  
Vol 64 (11) ◽  
pp. 758-764 ◽  
Author(s):  
Anwar Ali ◽  
Rajan Patel ◽  
Shahjahan Khan ◽  
Vidiksha Bhushan
Keyword(s):  
Viscous Flow ◽  
Activation Parameters ◽  
Partial Molar Volumes ◽  
Molar Refraction ◽  
Viscosity Data ◽  
Molar Volumes ◽  
Viscosity Coefficients ◽  
Different Temperatures ◽  
Refractive Index Data ◽  
Amino Acid Glycine

The densities (ρ), viscosities (η), and refractive indices (nD) of (0.01, 0.05, 0.10, 0.15, and 0.20 m) amino acid, glycine, and peptides, diglycine and triglycine in 0.01 m aqueous tartrazine solution were determined at 288.15, 293.15, 298.15, 303.15, 308.15, and 313.15 K. The density data were utilized to evaluate apparent molar volumes (φv) which, in turn, were used to determine partial molar volumes (φv ◦) using Masson’s equation. The transfer volumes were also calculated. The viscosity data were analyzed using the Jones-Dole equation to determine the viscosity coefficients and the activation parameters. The activation parameters of viscous flow were obtained to throw light on the mechanism of viscous flow. The molar refraction was calculated using the refractive index data. The results were interpreted in the light of ion-ion, ion-nonpolar, and nonpolar-nonpolar interactions and the effect of increasing hydrophobicity as we move from glycine to triglycine on these interactions in presence of the dye tartrazine was also investigated.

scholarly journals Partial Molar Volumes and Spectral Studies on Binary Mixtures of p-Chloroacetophenone with Aniline and N-Alkyl Anilines

2019 ◽  
Vol 31 (10) ◽  
pp. 2173-2180
Author(s):  
M. Radha Sirija ◽  
D. Bala ◽  
D. Ramachandran
Keyword(s):  
Binary Mixtures ◽  
Partial Molar Volumes ◽  
Polynomial Equation ◽  
Isentropic Compressibility ◽  
Liquid Mixtures ◽  
Spectral Studies ◽  
Viscosity Data ◽  
Molar Volumes ◽  
Different Temperatures ◽  
Semi Empirical

Ultrasonic velocities (u), viscosities (η) and densities (ρ) were measured for the binary mixtures of p-chloroacetophenone with aniline, N-methylaniline and N,N-dimethylaniline over the whole range of composition at different temperatures (303.15 K to 318.15 K) and at atmospheric pressure 0.1 MPa. Excess molar volume (VE), deviation in viscosity (Δη) and deviation in isentropic compressibility (Δks) have been calculated and fitted to Redlich-Kister polynomial equation to obtain their coefficients and standard deviations. The analyzed viscosity data of binary liquid mixtures were used to test the Grunberg-Nissan, Katti-Chaudari and Hind semi-empirical equations. The FTIR spectral study supports the experimental data to explain the molecular interactions between unlike molecules. Partial molar volumes of binary mixtures were evaluated for better understanding of intermolecular interactions of the above binary mixtures.

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