Excess molar volumes and excess viscosities for mixtures of N,N-dimethylformamide with methanol, ethanol and 2-propanol at different temperatures

2008 ◽  
Vol 138 (1-3) ◽  
pp. 139-146 ◽  
Author(s):  
M.M.H. Bhuiyan ◽  
M.H. Uddin
Keyword(s):  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Excess Viscosities ◽  
Different Temperatures

Excess molar volumes and viscosities for the n-decane + 1-chlorodecane system at different temperatures

1993 ◽  
Vol 71 (6) ◽  
pp. 790-795 ◽  
Author(s):  
Mercedes E. F. De Ruiz Holgado ◽  
Cecilia R. De Schaefer ◽  
Franco Davolio ◽  
Miguel Katz
Keyword(s):  
Experimental Data ◽  
Viscous Flow ◽  
Excess Molar Volumes ◽  
Solution Thermodynamics ◽  
Molar Volumes ◽  
Viscosity Coefficients ◽  
Excess Viscosities ◽  
Different Temperatures

Excess molar volumes, excess viscosities, and excess energies of activation for viscous flow have been determined for the n-decane + 1-chlorodecane system at different temperatures, over the whole concentration range. The Prigogine–Flory–Patterson model for solution thermodynamics has been used to calculate the excess molar volumes. Grunberg and Nissan, McAllister, Teja and Rice, and Schrodt and Akel models have been used to calculate viscosity coefficients and these were compared with experimental data for the mixtures.

scholarly journals A study on Volumetric and Viscometric Properties for the Mixtures of DMF and Other Alcohols from Temperatures ranges 303.15K to 323.15K

2015 ◽  
Vol 2 (2) ◽  
pp. 133-148
Author(s):  
Md. Zaved Hossain Khan ◽  
Md Helal Uddin ◽  
Md Shahrul Islam ◽  
G.M Arifuzzaman Khan ◽  
Md. Abdullah Al Muhit ◽  
...  
Keyword(s):  
Molar Volume ◽  
Chain Length ◽  
Excess Molar Volume ◽  
Binary Systems ◽  
Excess Molar Volumes ◽  
Energy Of Activation ◽  
Dimethyl Formamide ◽  
Molar Volumes ◽  
Excess Viscosities ◽  
Different Temperatures

Densities, p, and viscosities, ?, of four binary systems: N,N-dimethyl formamide (DMF) + 1-propanol, DMF + 2-propanol, DMF + butanol and DMF + 1-pentanol have been measured at five different temperatures ranging form 303.15K to 323.15K at an interval of 5K. Excess molar volumes were found to be negative over the entire concentration ranges. The negative excess molar volume decreases with the increase of chain length of alcohol, the magnitude follows the order DMF+ 1-propanol >, + 2-propanol >, +butanol >, + 1-pentanol. The change of viscosity has been found to be sensitive to the chain length of alcohols. Excess viscosities and Grunberg- Nissan interaction parameters have been found to be positive for DMF + 1-propanol and DMF + 2-propanol systems, and negative for other two systems DMF + butanol and DMF + 1-pentanol. The thermodynamic energy of activation; such as, positive ?G#E each also compatible with the observation.

Excess molar volumes and excess viscosities of the n-pentanol-cumene-1,4-dioxane system at 298.15 K

1990 ◽  
Vol 160 (2) ◽  
pp. 243-252 ◽  
Author(s):  
Graciela C. Pedrosa ◽  
Julio A. Salas ◽  
Miguel Katz
Keyword(s):  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Excess Viscosities

Excess molar volumes and excess viscosities for then-hexane+dichloromethane+tetrahydrofuran ternary system at 25�C

1996 ◽  
Vol 25 (11) ◽  
pp. 1125-1135 ◽  
Author(s):  
S. M. Bardavid ◽  
G. C. Pedrosa ◽  
M. Katz ◽  
M. A. Postigo ◽  
P. Garc�a
Keyword(s):  
Ternary System ◽  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Excess Viscosities

Densities and excess molar volumes of binary mixtures containing 1,2-dichloroethane + 2-methoxyethanol or 1,2-dimethoxyethane at different temperatures

2002 ◽  
Vol 100 (2) ◽  
pp. 163-181 ◽  
Author(s):  
Matteo Manfredini ◽  
Andrea Marchetti ◽  
Simona Sighinolfi ◽  
Lorenzo Tassi ◽  
Alessandro Ulrici ◽  
...  
Keyword(s):  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Different Temperatures
Sign in / Sign up

Export Citation Format

Share Document