Understanding the behavior of binary system contains N, N-dimethylformamide and N-methylanlinine in terms of thermo-acoustic parameters at different temperatures

2018 ◽  
Vol 5 (12) ◽  
pp. 25850-25861
Author(s):  
T. Kalimulla ◽  
G.V. Gangadhara Rao ◽  
K. Govinda Rao ◽  
Shaik Babu
Keyword(s):  
Binary System ◽  
Acoustic Parameters ◽  
Different Temperatures

Excess Thermo Acoustic Parameters in 1,4-Dioxane With 1-Pentanol Binary System

2012 ◽  
Vol 3 (6) ◽  
pp. 415-418
Author(s):  
Anil Kumar K ◽  
◽  
Dr Srinivasu Ch Dr Srinivasu Ch
Keyword(s):  
Binary System ◽  
Acoustic Parameters

Modeling of Liquid-Liquid Demixing Curve in Lead-Zinc Binary System

2018 ◽  
Vol 18 ◽  
pp. 49-54
Author(s):  
Naceur Amel ◽  
Adjadj Fouzia
Keyword(s):  
Mathematical Model ◽  
Free Energy ◽  
Phase Separation ◽  
Binary System ◽  
Free Energies ◽  
Common Tangent ◽  
Different Temperatures ◽  
Lead Zinc ◽  
The Common ◽  
Zn Alloys

In this work we discussed the modeling of the demixing curve in the liquid state in the Lead – Zinc binary system. We are interested to recalculate the free energies relating on Pb-Zn alloys for several temperatures based on the thermodynamic data collected in the bibliography. This calculation allows us to trace the curve of phase separation from a program after obtaining the mole fractions corresponding to the common tangent to the curve of the free energy with two minima at different temperatures. To do this, we used the Matlab 7.1 as the programming language and the Redlich-Kister polynomial as a mathematical model of development. The results obtained are very satisfactory by comparing them with those of the bibliography.

The Role of Temperature on Hydration of Binary System of Metakaolin/Portland Cement

2016 ◽  
Vol 851 ◽  
pp. 51-56 ◽  
Author(s):  
Martin Boháč ◽  
Radoslav Novotný ◽  
Jakub Tkacz ◽  
Miroslava Hajdúchová ◽  
Martin Palou ◽  
...  
Keyword(s):  
Binary System ◽  
Portland Cement ◽  
Isothermal Calorimetry ◽  
Chemical Characterization ◽  
Exothermic Peak ◽  
Early Hydration ◽  
Different Temperatures ◽  
C 50

The role of temperature of metakaolin/Portland cement binary system was studied by isothermal calorimetry. Sample with 50 % of metakaolin replacement were monitored at 30 °C, 40 °C, 50 °C and 60 °C. Structural and chemical characterization of hardened pastes was obtained by scanning electron and Raman microscopy. Paper deals with kinetics of main exothermal reactions during early hydration of the system. Activation energies were calculated for processes related to each exothermic peak. The nature of hydration products at different temperatures was revealed by microstructural studies.

Ultrasonic study of thermo-acoustic parameters of the polysorbate 20, 40, 60 and 80 liquid surfactants at different temperatures

2014 ◽  
Vol 196 ◽  
pp. 244-248 ◽  
Author(s):  
F.M. Sannaningannavar ◽  
Shivaram N. Patil ◽  
R.M. Melavanki ◽  
B.S. Navati ◽  
N.H. Ayachit
Keyword(s):  
Acoustic Parameters ◽  
Ultrasonic Study ◽  
Polysorbate 20 ◽  
Different Temperatures

Densities and viscosities of mixing for the binary system of methyl benzoate with n-nonane at different temperatures

1991 ◽  
Vol 186 (2) ◽  
pp. 285-292 ◽  
Author(s):  
B. García ◽  
M.J. Miranda ◽  
J.M. Leal ◽  
J. Ortega ◽  
J.S. Matos
Keyword(s):  
Binary System ◽  
Methyl Benzoate ◽  
Different Temperatures

scholarly journals Acoustical Investigation of N–(2-hydroxybenzylidene)-3-Substituted Pyridine -2- Amine Schiff bases by Ultrasonic Velocity Measurements in Dioxane at Different Temperatures

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Mrunal M. Mahajan ◽  
Pravin B. Raghuwanshi
Keyword(s):  
Schiff Bases ◽  
Ultrasonic Velocity ◽  
Adiabatic Compressibility ◽  
Water Molecules ◽  
Water Medium ◽  
Velocity Measurements ◽  
Acoustic Parameters ◽  
Intermolecular Free Length ◽  
Different Temperatures ◽  
Solvent Molecules

<div><p><em>The present work deals with the study of acoustic parameters like ultrasonic velocity (V), </em><em>adiabatic compressibility (β<sub>s</sub>), apparent molar volume (</em><em>f</em><em><sub>v</sub></em><em>) and intermolecular free length (L<sub>f</sub>) by ultrasonic </em><em>interferometric measurements</em><em> which reflects structural interaction of water molecules and organic solvent molecules with substituted Schiff bases. The study of N–(2-hydroxybenzylidene)-3-substituted pyridine -2- amine Schiff bases were carried in different percentage of 1,4-dioxane-water medium, at 293, 297 and 300 K. The densities and velocities thus obtained were used to evaluate acoustic parameters for all the ligands.</em></p></div>

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