Density, Viscosity, Electrical Conductivity, and Surface Tension of Chelate-Based Ionic Liquids [C10mim][M(hfac)3] (M = Co, Ni, Cu) at Different Temperatures

2019 ◽  
Vol 64 (10) ◽  
pp. 4264-4271 ◽  
Author(s):  
Guodong Lu ◽  
Jia Yao ◽  
Haoran Li
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Ionic Liquids ◽  
Different Temperatures

The Density and Surface Tension of Aqueous Solutions of Propionate Ionic Liquids: [C4mim][Pro] and [C6mim][Pro] at Different Temperatures

2016 ◽  
Vol 45 (2) ◽  
pp. 188-199 ◽  
Author(s):  
Jing Tong ◽  
Teng-Fei Chen ◽  
Lin-Fu Wang ◽  
Duo Zhang ◽  
Qi Yang ◽  
...  
Keyword(s):  
Surface Tension ◽  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Different Temperatures

Taylor cones of ionic liquids from capillary tubes as sources of pure ions: The role of surface tension and electrical conductivity

2007 ◽  
Vol 102 (6) ◽  
pp. 064913 ◽  
Author(s):  
D. Garoz ◽  
C. Bueno ◽  
C. Larriba ◽  
S. Castro ◽  
I. Romero-Sanz ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Ionic Liquids ◽  
Capillary Tubes

Taylor Cones of Ionic Liquids as Ion Sources: The Role of Electrical Conductivity and Surface Tension

2007 ◽  
pp. 308-319 ◽  
Author(s):  
C. Larriba ◽  
D. Garoz ◽  
C. Bueno ◽  
I. Romero-Sanz ◽  
S. Castro ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Ionic Liquids ◽  
Ion Sources

Properties of Acetamide-Alanine Eutectic Ionic Liquid and its Application in Soil Heavy Metal Cd2+ Remediation

2020 ◽  
Vol 842 ◽  
pp. 115-120
Author(s):  
Bao You Liu ◽  
Feng Li ◽  
Jie Tian ◽  
Hui Long Yang
Keyword(s):  
Aqueous Solution ◽  
Electrical Conductivity ◽  
Heavy Metal ◽  
Surface Tension ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Extraction Efficiency ◽  
Soil Heavy Metal ◽  
Acid Aqueous Solution ◽  
Heavy Metal Cd

In order to explore the feasibility of a class of eutectic ionic liquids in soil heavy metal repair problems. The acetamide-alanine eutectic ionic liquid was prepared and its properties of density, viscosity, surface tension and electrical conductivity were measured, and it’s application effect of Cd2+ extraction in soil was studied. The results showed that the extraction amount of Cd2+ in soil by the acetamide-alanine eutectic ionic liquid with a concentration of 0.6 mol/L reached the maximum of 99.67%. The physical properties of a melamine-alanine eutectic ionic liquid having a concentration of 0.6 mol/L at a temperature range of 303.15 K-343.15 K were determined. The 0.6 mol/L acetamide-alanine eutectic ionic liquid was compared with the ionic liquid and the related organic acid aqueous solution prepared under the same conditions, and the acetamide-alanine eutectic prepared by the experiment was found to be eutectic. The ionic liquid has better extraction efficiency for heavy metal Cd2+ under the same conditions, and is a good soil heavy metal extractant.

Viscosity, Electrical Conductivity, Density and Surface Tension of Methyltriphenylphosphonium Carboxylate Ionic Liquids

2019 ◽  
Vol 92 (3) ◽  
pp. 578-584
Author(s):  
Tao Geng ◽  
Shengfu Duan ◽  
Yajie Jiang ◽  
Hongbin Ju ◽  
Yakui Wang
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Ionic Liquids

ChemInform Abstract: Taylor Cones of Ionic Liquids as Ion Sources: The Role of Electrical Conductivity and Surface Tension

ChemInform ◽  
2008 ◽  
Vol 39 (42) ◽  
Author(s):  
C. Larriba ◽  
D. Garoz ◽  
C. Bueno ◽  
I. Romero-Sanz ◽  
S. Castro ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Ionic Liquids ◽  
Ion Sources

Applications of Flory’s Statistical Theory to Ionic Liquids in the Extended Pressure Range and at Different Temperatures

2021 ◽  
Vol 11 ◽  
Author(s):  
Rama Kant ◽  
Subhash Chandra Shrivastava ◽  
Shekhar Srivastava ◽  
J D Pandey
Keyword(s):  
Surface Tension ◽  
Statistical Theory ◽  
Ionic Liquids ◽  
Sound Speed ◽  
Physical Conditions ◽  
Cohesive Energy Density ◽  
Polarity Index ◽  
Extended Range ◽  
Different Temperatures ◽  
First Time

Introduction: Flory’s statistical theory (FST) for the first time, has been applied successfully to two pure ionic liquids, [C3mim][NTf2] and [C5mim][NTf2] over an extended range of pressure (0.10 – 59.9) MPa and at different temperatures (298.15 – 333.15) K . Methods: : Density and sound speed data have been employed to compute a number of useful and important properties of these ionic liquids in the light of FST. Using Flory parameters (P*, T*, V*, P̃, T̃, Ṽ) the expression for the surface tension (σ) has been deduced in the form σ = σ* σ᷉ (Ṽ), σ* and σ᷉ (Ṽ) being the characteristic and reduced values of surface tension. Since the experimental σ of liquids is not known, the validity of FST has been tested by calculating u using four different u-ρ- σ correlations, namely Auerbach (1948), Altenberg (1950) Singh et al (1997) and Modified Auerbach (2016). Results: A number of useful and important properties of ionic liquids, under the varying physical conditions, have been deduced and compared with the observed ones with quite satisfactory agreement. Such properties include Pint, van der Waals constants (a & b), parachor [P], Eötvas constant (kB), energy (∆EV) and heat of vaporization (∆HV), cohesive energy density (ced), polarity index (n) and solubility parameter (δ). Conclusion: Thus the validity of FST to two ionic liquids under the present study, has been confirmed.

scholarly journals Study of Molecular Interaction in Aqueous KCl at Different Temperatures

2021 ◽  
Vol 13 (1) ◽  
pp. 1-8
Author(s):  
M. K. Praharaj
Keyword(s):  
Experimental Data ◽  
Aqueous Solution ◽  
Electrical Conductivity ◽  
Surface Tension ◽  
Molecular Interactions ◽  
Molecular Interaction ◽  
Solvation Number ◽  
Wada’S Constant ◽  
Rao’S Constant ◽  
Different Temperatures

Ultrasonic velocity, density, viscosity, and electrical conductivity have been measured for an aqueous solution of KCl at different concentrations and temperatures, the frequency is maintained at a constant value. Using the above experimental data, parameters such as Rao's constant, Wada's constant, solvation number, and surface tension were calculated and the molecular interactions between molecules of KCl and water at different temperatures was studied. Using Walden's plot, the ionicity of the solution was also studied.

scholarly journals Influence of Small Quantities of Water on the Physical Properties of Alkylammonium Nitrate Ionic Liquids

2021 ◽  
Vol 22 (14) ◽  
pp. 7334
Author(s):  
David Ausín ◽  
Juan J. Parajó ◽  
José L. Trenzado ◽  
Luis M. Varela ◽  
Oscar Cabeza ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Refractive Index ◽  
Ionic Liquids ◽  
Physical Properties ◽  
Transport Processes ◽  
Average Percentage ◽  
Wide Range ◽  
Ethylammonium Nitrate ◽  
Potential Applications

This paper presents a comprehensive study of two alkylammonium nitrate ionic liquids. As part of this family of materials, mainly ethylammonium nitrate (EAN) and also propylammonium nitrate (PAN) have attracted a great deal of attention during the last decades due to their potential applications in many fields. Although there have been numerous publications focused on the measurement of their physical properties, a great dispersion can be observed in the results obtained for the same magnitude. One of the critical points to be taken into account in their physical characterization is their water content. Thus, the main objective of this work was to determine the degree of influence of the presence of small quantities of water in EAN and PAN on the measurement of density, viscosity, electrical conductivity, refractive index and surface tension. For this purpose, the first three properties were determined in samples of EAN and PAN with water contents below 30,000 ppm in a wide range of temperatures, between 5 and 95 °C, while the last two were obtained at 25 °C. As a result of this study, it has been concluded that the presence of water is critical in those physical properties that involve mass or charge transport processes, resulting in the finding that the absolute value of the average percentage change in both viscosity and electrical conductivity is above 40%. Meanwhile, refractive index (≤0.3%), density (≤0.5%) and surface tension (≤2%) present much less significant changes.

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