Properties modification by eutectic formation in mixtures of ionic liquids

RSC Advances ◽  
2015 ◽  
Vol 5 (28) ◽  
pp. 22178-22187 ◽  
Author(s):  
Olga Stolarska ◽  
Ana Soto ◽  
Héctor Rodríguez ◽  
Marcin Smiglak
Keyword(s):  
Surface Tension ◽  
Ionic Liquids ◽  
Physical Properties ◽  
Melting Temperature ◽  
Eutectic Mixtures ◽  
Eutectic Formation

The composition and temperature of three eutectic mixtures of ionic liquids and their physical properties (density, viscosity, and surface tension) are presented. Melting temperature depressions of up to ca. 50 K were found with regard to those of the parent 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.

INDALLOY 136

Alloy Digest ◽  
1981 ◽  
Vol 30 (5) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Melting Temperature ◽  
Eutectic Alloy ◽  
Heat Treating

Abstract INDALLOY 136 is a bismuth-base, eutectic alloy that melts at 136 F (57.8 C). It is used widely in industry because of its low melting temperature and controlled-shrinkage characteristics. It provides the scientist, engineer and technician with an easily castable material that is ready for use soon after it freezes. The alloy can be recovered easily and recycled into new uses any number of times. Among its uses are anchoring parts for machining, proof casting and low-melting solder. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, heat treating, and machining. Filing Code: Bi-24. Producer or source: Indium Corporation of America.

CERROLOW-136 Alloy

Alloy Digest ◽  
1979 ◽  
Vol 28 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Melting Temperature ◽  
Eutectic Alloy ◽  
Heat Treating ◽  
Metal Products

Abstract CERROLOW-136 Alloy is a bismuth-base eutectic alloy that melts at 136 F (57.8 C), hence its identifying number. It is widely used in industry because of its low melting temperature and controlled-shrinkage characteristics. Among tis many applications are (1) Anchoring parts such as jet blades for machining, testing and inspection, (2) In the foundry for fusible cores in compound cores and (3) Low-melting solder. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, heat treating, and machining. Filing Code: Bi-13. Producer or source: Cerro Metal Products.

CERROLOW-117 Alloy

Alloy Digest ◽  
1978 ◽  
Vol 27 (10) ◽  
Keyword(s):  
Low Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Melting Temperature ◽  
Eutectic Alloy ◽  
Heat Treating ◽  
Dental Models ◽  
Metal Products

Abstract CERROLOW-117 Alloy is a bismuth-base eutectic alloy that melts at 117 F (47 C). Its low melting temperature and controlled-shrinkage characteristics make it very useful in industry for such applications as proof casting in tool and die shops, dental models and low-temperature solder. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, forming, heat treating, and machining. Filing Code: Bi-8. Producer or source: Cerro Metal Products.

Green Chemistry and Green Solvents: An Overview

2020 ◽  
Vol 7 (3) ◽  
pp. 314-325
Author(s):  
Barla Karuna Devi ◽  
Swathi Naraparaju ◽  
Chaganti Soujanya ◽  
Sayan Dutta Gupta
Keyword(s):  
Ionic Liquids ◽  
Green Chemistry ◽  
Chemical Reaction ◽  
Supercritical Co2 ◽  
Environmental Problems ◽  
Green Solvents ◽  
Eutectic Mixtures ◽  
Organic Carbonates

: Green chemistry emphasizes designing novel routes to overcome health and environmental problems that occur during a chemical reaction. Green solvents are used in place of conventional solvents that are hazardous to both human and the environment. Solvents like water, ionic liquids, supercritical CO2, biosolvents, organic carbonates, and deep eutectic mixtures can be used as green solvents. The review focuses on the properties, applications, and limitations of these solvents.

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

Immobilization of molecules based ionic liquids. A promising approach to improve elecrocatalysts performance towards hydrogen evolution reaction

2021 ◽  
Author(s):  
Hoa-zheng Yu ◽  
Selma Bencherif ◽  
Thuan-Nguyen Pham-Truong ◽  
Jalal Ghilane
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Unique Chemical ◽  
Successful Integration

Ionic liquids (ILs) have received continuous attention owing to their unique chemical and physical properties and to their successful integration in several applications. More recently, the ILs moved from their...

Numerical Simulation of Droplet Ejection Based on VOF Method

2014 ◽  
Vol 548-549 ◽  
pp. 1257-1264 ◽  
Author(s):  
Xiao Yong Suo
Keyword(s):  
Numerical Simulation ◽  
Surface Tension ◽  
Numerical Model ◽  
Physical Properties ◽  
Vof Method ◽  
Numerical Results ◽  
Droplet Ejection ◽  
Ejection Process ◽  
Ink Jet ◽  
Jet Nozzle

Taking ejection process of the ink droplets from ink-jet nozzle as the prototype, a similar numerical model of droplet ejection was established. The VOF method was applied to track the interface of droplet ejection process and it is shown that the numerical results simulated by the VOF method were accurate and reliable. Six kinds of liquid with different physical properties were chosen as the research object. The numerical results were analyzed and compared. Finally, the effect of the surface tension, viscosity and density on the droplet ejection process was discussed.

The physical properties of anomalous water

1971 ◽  
Vol 24 (4) ◽  
pp. 675 ◽  
Author(s):  
WW Mansfield
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Melting Point ◽  
Aqueous Solutions ◽  
Physical Properties ◽  
Vapour Pressure ◽  
Column Length ◽  
Anomalous Water

The properties of anomalous aqueous condensates, prepared in the manner described by Deryagin,1 vary with aqueous vapour pressure. The changes of column length and of melting point are similar to those of ordinary aqueous solutions. There is no sound evidence that the condensate exhibits abnormal viscosity, density, electrical conductivity, or surface tension.

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