Magneto-optical rotation studies of the structural properties of liquid mixtures. Part 1.—Binary mixtures of alcohols, carboxylic acids, ethers and acetone with water

1978 ◽  
Vol 74 (0) ◽  
pp. 1702 ◽  
Author(s):  
J. Graham Dawber
Keyword(s):  
Structural Properties ◽  
Carboxylic Acids ◽  
Binary Mixtures ◽  
Optical Rotation ◽  
Liquid Mixtures

Excess molar volumes and viscosities of binary mixtures of some polyethers with propylamine at 298.15 K

2002 ◽  
Vol 80 (5) ◽  
pp. 467-475 ◽  
Author(s):  
Amalendu Pal ◽  
Rakesh Kumar Bhardwaj
Keyword(s):  
Experimental Data ◽  
Viscous Flow ◽  
Binary Mixtures ◽  
Entire Range ◽  
Excess Volume ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Volume Viscosity

Excess molar volumes (VmE) and dynamic viscosities (η) have been measured as a function of composition for binary liquid mixtures of propylamine with 2,5-dioxahexane, 2,5,8-trioxanonane, 2,5,8,11-tetraoxadodecane, 3,6,9-trioxaundecane, and 5,8,11-trioxapentadecane at 298.15 K. The excess volumes are positive over the entire range of composition for the systems propylamine + 2,5-dioxahexane, and + 3,6,9-trioxaundecane, negative for the systems propylamine + 2,5,8,11-tetraoxadodecane, and + 5,8,11-trioxapentadecane, and change sign from positive to negative for the remaining system propylamine + 2,5,8-trioxanonane. From the experimental data, deviations in the viscosity (Δln η) and excess energies of activation for viscous flow (ΔG*E) have been derived. These values are positive for all mixtures with the exception of propylamine + 2,5-dioxahexane.Key words : excess volume, viscosity, binary mixtures.

Excess Gibbs energy for binary mixtures of acetonitrile with acetic acid, propionic acid, isobutyric acid, and trimethylacetic acid

1991 ◽  
Vol 69 (12) ◽  
pp. 2117-2121 ◽  
Author(s):  
T. S. Banipal ◽  
B. S. Lark ◽  
S. Singh
Keyword(s):  
Acetic Acid ◽  
Gibbs Energy ◽  
Carboxylic Acids ◽  
Propionic Acid ◽  
Binary Mixtures ◽  
Activity Coefficients ◽  
Excess Gibbs Energy ◽  
Composition Range ◽  
Isobutyric Acid ◽  
Dimerization Constant

Total vapour pressures for binary mixtures containing acetic acid, propionic acid, isobutyric acid, and trimethylacetic acid with acetonitrile have been measured for the entire composition range at 298.15 and 318.15 K using a static manometric method. All systems show positive deviations from Raoult's law, enhanced by both an increase in temperature and an increase in the methylation of acetic acid. Activity coefficients have been calculated by taking into consideration the dimerization of these carboxylic acids in the vapour phase. TSE values obtained from GE and earlier reported HE values are found to be negative for acetic acid, about zero for propionic and isobutyric acids, and positive for trimethylacetic acid for the whole composition range. The results have been interpreted in terms of various contributions such as depolymerization, heteromolecular dipole–dipole interactions, and the increasing dimerization constant and steric hindrance with increase of complexity of the acid. Key words: excess Gibbs energy, carboxylic acids, acetonitrile, activity coefficients

Light scattering of liquids and liquid mixtures. 3. Thermodynamic interaction data for selected binary mixtures

1989 ◽  
Vol 93 (25) ◽  
pp. 8248-8253 ◽  
Author(s):  
Weizhuang Cheng ◽  
Abdel Azim A. Abdel-Azim ◽  
Mohammad J. El-Hibri ◽  
Qiangguo Du ◽  
Petr Munk
Keyword(s):  
Light Scattering ◽  
Binary Mixtures ◽  
Liquid Mixtures ◽  
Interaction Data ◽  
Thermodynamic Interaction

scholarly journals The Borderline between Reactivity and Pre-reactivity of Binary Mixtures of Gaseous Carboxylic Acids and Alcohols

2017 ◽  
Vol 56 (14) ◽  
pp. 3872-3875 ◽  
Author(s):  
Luca Evangelisti ◽  
Lorenzo Spada ◽  
Weixing Li ◽  
Fanny Vazart ◽  
Vincenzo Barone ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Binary Mixtures
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