Surface tension and refractive index of pure and water-saturated tetradecyltrihexylphosphonium-based ionic liquids

2013 ◽  
Vol 57 ◽  
pp. 372-379 ◽  
Author(s):  
Hugo F.D. Almeida ◽  
José A. Lopes-da-Silva ◽  
Mara G. Freire ◽  
João A.P. Coutinho
Keyword(s):  
Surface Tension ◽  
Refractive Index ◽  
Ionic Liquids ◽  
Water Saturated

The surface tension, density and refractive index of amino acid ionic liquids: [C3mim][Gly] and [C4mim][Gly]

2012 ◽  
Vol 54 ◽  
pp. 352-357 ◽  
Author(s):  
Jing Tong ◽  
Mei Hong ◽  
Yan Chen ◽  
Hui Wang ◽  
Wei Guan ◽  
...  
Keyword(s):  
Surface Tension ◽  
Refractive Index ◽  
Ionic Liquids ◽  
Amino Acid

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.

scholarly journals Densities, viscosities and derived thermophysical properties of water-saturated imidazolium-based ionic liquids

2016 ◽  
Vol 407 ◽  
pp. 188-196 ◽  
Author(s):  
Mónia A.R. Martins ◽  
Catarina M.S.S. Neves ◽  
Kiki A. Kurnia ◽  
Pedro J. Carvalho ◽  
Marisa A.A. Rocha ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermophysical Properties ◽  
Water Saturated

Surface tension measurements with validated accuracy for four 1-alkyl-3-methylimidazolium based ionic liquids

2010 ◽  
Vol 42 (3) ◽  
pp. 323-329 ◽  
Author(s):  
Jaroslav Klomfar ◽  
Monika Součková ◽  
Jaroslav Pátek
Keyword(s):  
Surface Tension ◽  
Ionic Liquids

Easy prediction of the refractive index for binary mixtures of ionic liquids with water or ethanol

2012 ◽  
Vol 47 ◽  
pp. 219-222 ◽  
Author(s):  
E. Rilo ◽  
M. Domínguez-Pérez ◽  
J. Vila ◽  
L. Segade ◽  
M. García ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ionic Liquids ◽  
Binary Mixtures

A Simple Prediction Method for the Surface Tension of Ionic Liquids as a Function of Temperature

2017 ◽  
Vol 38 (11) ◽  
Author(s):  
Thomas M. Koller ◽  
Corina Steininger ◽  
Michael H. Rausch ◽  
Andreas P. Fröba
Keyword(s):  
Surface Tension ◽  
Ionic Liquids ◽  
Prediction Method
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