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

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

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

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

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.

ROLE OF ADDED PHOSPHOGYPSUM AND HUMIC ACIDS IN THE KINETIC RELEASE OF SALT FROM SALT AFFECTED SOIL (SALINE – SODIC)

2020 ◽  
pp. 15-27
Keyword(s):  
Electrical Conductivity ◽  
Humic Acids ◽  
Release Rate ◽  
Release Kinetics ◽  
Sodium Adsorption Ratio ◽  
Salt Affected Soil ◽  
Two Factors ◽  
Dissolved Ions ◽  
Kinetic Release

In order to study the effect of phosphogypsum and humic acids in the kinetic release of salt from salt-affected soil, a laboratory experiment was conducted in which columns made from solid polyethylene were 60.0 cm high and 7.1 cm in diameter. The columns were filled with soil so that the depth of the soil was 30 cm inside the column, the experiment included two factors, the first factor was phosphogypsum and was added at levels 0, 5, 10 and 15 tons ha-1 and the second-factor humic acids were added at levels 0, 50, 100 and 150 kg ha-1 by mixing them with the first 5 cm of column soil and one repeater per treatment. The continuous leaching method was used by using an electrolytic well water 2.72 dS m-1. Collect the leachate daily and continue the leaching process until the arrival of the electrical conductivity of the filtration of leaching up to 3-5 dS m-1. The electrical conductivity and the concentration of positive dissolved ions (Ca, Mg, Na) were estimated in leachate and the sodium adsorption ratio (SAR) was calculated. The results showed that the best equation for describing release kinetics of the salts and sodium adsorption ratio in soil over time is the diffusion equation. Increasing the level of addition of phosphogypsum and humic acids increased the constant release velocity (K) of salts and the sodium adsorption ratio. The interaction between phosphogypsum and humic acids was also affected by the constant release velocity of salts and the sodium adsorption ratio. The constant release velocity (K) of the salts and the sodium adsorption ratio at any level of addition of phosphogypsum increased with the addition of humic acids. The highest salts release rate was 216.57 in PG3HA3, while the lowest rate was 149.48 in PG0HA0. The highest release rate of sodium adsorption ratio was 206.09 in PG3HA3, while the lowest rate was 117.23 in PG0HA0.

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