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<strong>Thermophysical properties for binary mixtures of polyethylene glycol 400 with <em>n</em>-propanol</strong>

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Title Statement <strong>Thermophysical properties for binary mixtures of polyethylene glycol 400 with <em>n</em>-propanol</strong>
 
Added Entry - Uncontrolled Name Budeanu, Maria Magdalena; Petroleum and Gas University of Ploiesti
Dumitrescu, Vasile ; Petroleum-Gas University of Ploiesti
 
Uncontrolled Index Term Thermodynamics
Solution chemistry, Polyethylene glycol, n-Propanol, Thermophysical properties, Excess properties, Binary systems, Density, Refractive indices
 
Summary, etc. <p>Densities (<em>ρ</em>), viscosities (<em>η</em>) and refractive indices (<em>n</em><sub>D</sub>) of the binary system polyethylene glycol 400+<em>n</em>-propanol have been measured at (293.15, 298.15 and 303.15) K and at atmospheric pressure, over the entire composition range. From experimental results, the values of excess properties have been calculated and fitted to the Redlich-Kister equation. Negative deviations are observed for excess molar volumes, deviation in viscosities and excess internal pressures, while positive deviations are observed in the case of refractive indices and excess Gibbs energies of activation of viscous flow at all of the temperatures and in the entire concentration range. Of the studied models, the Jouyban-Acree model is suitable for describing the viscosity of the PEG 400+<em>n</em>-propanol binary system. The refractive index predicted by the Newton-mixing rule shows the best agreement with experimental values. The values of thermodynamic functions of activation viz., D<em>G</em><sup>#</sup>, D<em>H</em><sup>#</sup> and D<em>S</em><sup>#</sup>, are positive for the PEG 400+<em>n</em>-propanol binary system.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-10-19 14:05:15
 
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http://op.niscair.res.in/index.php/IJCA/article/view/21405
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 57, ##issue.no## 8-9 (2018): INDIAN JOURNAL OF CHEMISTRY- SECTION A
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466920
http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466921
http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466922
http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466923
http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466924
http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466925
http://op.niscair.res.in/index.php/IJCA/article/download/21405/465466992
 
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