High-Pressure Densities and Derived Volumetric Properties (Excess, Apparent and Partial Molar Volumes) of Binary Mixtures of Methanol + [BMIM][PF6]

2008 ◽  
Vol 37 (6) ◽  
pp. 801-833 ◽  
Author(s):  
I. M. Abdulagatov ◽  
A. Tekin ◽  
J. Safarov ◽  
A. Shahverdiyev ◽  
E. Hassel
Keyword(s):  
High Pressure ◽  
Binary Mixtures ◽  
Partial Molar Volumes ◽  
Volumetric Properties ◽  
Molar Volumes

High-pressure densities and derived volumetric properties (excess and partial molar volumes, vapor-pressures) of binary methanol+ethanol mixtures

2008 ◽  
Vol 476 (1-2) ◽  
pp. 51-62 ◽  
Author(s):  
I.M. Abdulagatov ◽  
F.Sh. Aliyev ◽  
M.A. Talibov ◽  
J.T. Safarov ◽  
A.N. Shahverdiyev ◽  
...  
Keyword(s):  
High Pressure ◽  
Partial Molar Volumes ◽  
Volumetric Properties ◽  
Vapor Pressures ◽  
Molar Volumes

scholarly journals VOLUMETRIC PROPERTIES OF ACRYLONITRILE+ETHANOL MIXTURE OVER TEMPERATURE RANGE FROM (293.15 TO 323.15) K AT AMBIENT PRESSURE

2020 ◽  
Vol 63 (2) ◽  
pp. 32-37
Author(s):  
Heghine H. Ghazoyan
Keyword(s):  
Hydrogen Bonding ◽  
Binary Mixture ◽  
Binary Mixtures ◽  
Ambient Pressure ◽  
Full Range ◽  
Excess Molar Volumes ◽  
Partial Molar Volumes ◽  
The Self ◽  
Volumetric Properties ◽  
Molar Volumes

Densities of binary mixture of acrylonitrile in ethanol have been measured over the full range of compositions at temperatures from 293.15K to 323.15 K at the ambient pressure (87.9 kPa). The volumetric properties such as excess molar volumes, apparent molar volumes, partial molar volumes, excess partial molar volumes, standard partial molar volumes for binary mixture were calculated. Excess molar volumes were described by the Redlich–Kister polynomial equation. The Redlich–Kister coefficients and the standard deviations were calculated as well. The excess molar volumes exhibit mainly negative deviations from the ideal behavior over the whole range of composition for acrylonitrile+ethanol binary mixtures at low temperatures and become less negative with increasing temperature from 293.15 to 323.15 K. The results are interpreted on the basis of strong interaction between group of acrylonitrile and OH group of ethanol by hydrogen bonding. However, the sigmoid shape of plots of excess molar volumes versus molar fraction of ethanol from positive to negative values indicates to the varying interactions depending upon the composition of binary mixtures. Moreover, it is also attributed to the self-associating effect of ethanol therefore the self-associates of acrylonitrile by dipole-dipole interactions and the self-associates of ethanol by hydrogen bonding between same molecules at low concentrations predominate too.

Using spline functions for obtaining accurate partial molar volumes in binary mixtures

1998 ◽  
Vol 22 (2-3) ◽  
pp. 225-235 ◽  
Author(s):  
Juan F. Van der Maelen Urı́a ◽  
Carmen Alvarez-Rúa Alvarez
Keyword(s):  
Binary Mixtures ◽  
Partial Molar Volumes ◽  
Spline Functions ◽  
Molar Volumes

Densities of CO2-Ethanol,CO2-Acetone,CO2-Heptane Binary Mixtures and Partial Molar Volumes of the Solutes

1996 ◽  
Vol 12 (09) ◽  
pp. 816-824
Author(s):  
Zhong Ming-Hong ◽  
◽  
Ke Jie ◽  
Han Bu-Xing ◽  
Yan Hai-Ke
Keyword(s):  
Binary Mixtures ◽  
Partial Molar Volumes ◽  
Molar Volumes

The partial molar volumes for water dissolved in high-pressure carbon dioxide from T = (318.28 to 369.40) K and pressures to p = 35 MPa

2016 ◽  
Vol 93 ◽  
pp. 337-346 ◽  
Author(s):  
Connor E. Deering ◽  
Edward C. Cairns ◽  
Jay D. McIsaac ◽  
Andrew S. Read ◽  
Robert A. Marriott
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Partial Molar Volumes ◽  
Molar Volumes

scholarly journals Volumetric Properties of Aqueous Solutions of Ethylene Glycols in the Temperature Range of 293.15–318.15 K

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Omer El-Amin Ahmed Adam ◽  
Ammar Hani Al-Dujaili ◽  
Akl M. Awwad
Keyword(s):  
Thermal Expansion ◽  
Aqueous Solutions ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Volumetric Properties ◽  
Molar Volumes ◽  
Ethylene Glycols ◽  
Increasing Temperature

Densities of aqueous solutions of Ethylene glycol (EG), diethylene glycol (DEG), and triethylene glycol (TEG) were measured at temperatures from 293.15 to 318.15 K and molalities ranging from 0.0488 to 0.5288 mol·kg−1. Volumes of all investigated solutions at a definite temperature were linearly dependent on the solute molality; from this dependence the partial molar volumes at infinite dilution were determined for all solutes. It was found that the partial molar volumes at infinite dilution V-2,0 were concentration independent and slightly increase with increasing temperature. The partial molar volumes at infinite dilution V-2,0 or the limiting apparent molar volumes of ethylene glycols were fitted to a linear equation with the number of oxyethylene groups (n) in the solute molecule. From this equation a constant contribution of the terminal (OH) and the (CH2CH2O) groups to the volumetric properties was obtained. The thermal expansion coefficient (α1,2) for all investigated solutions was calculated at temperatures from 293.15 to 318.15 K. The thermal expansion coefficients for all solutes increase with increasing temperature and molality. Values of (α1,2) were higher than the value of the thermal expansion coefficient of the pure water.

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