Inside Cover: Volatile Times for the Very First Ionic Liquid: Understanding the Vapor Pressures and Enthalpies of Vaporization of Ethylammonium Nitrate (Chem. Eur. J. 37/2014)

Emel′yanenko, Vladimir N.; Boeck, Gisela; Verevkin, Sergey P.; Ludwig, Ralf

doi:10.1002/chem.201490155

Cited by 2 publications

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“…Of particular note, ethylammonium nitrate (EAN) and to a lesser extent propylammonium nitrate (PAN) have been widely studied, as EAN is regarded as the first truly room temperature ionic liquid to have been discovered [50,51]. Figure S9 presents the P vap values of PAN (this work) and EAN (as measured by Emel'yanenko et al [52]) as a function of temperature, indicating the slightly more volatile nature of PAN when compared to EAN. This difference in volatility is attributed to the intermolecular hydrogen bonding interactions between the ions (+NH•••O-).…”

Section: Vapor Pressures Of Protic Ilsmentioning

confidence: 86%

Vapor Pressure Mapping of Ionic Liquids and Low-Volatility Fluids Using Graded Isothermal Thermogravimetric Analysis

et al. 2019

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One of the hallmarks of ionic liquids (ILs) and a critical part of their sustainable implementation is their low volatility, although statements in this regard are frequently made in the absence of a critical evaluation. Although it is generally accepted that conventional ILs exhibit significantly reduced vapor pressures relative to common organic solvents, glib statements about ILs having zero volatility can no longer be abided, even if a concrete temperature-dependent vapor pressure, Pvap(T), framework for placement of IL performance has not yet been established. In this communication, Pvap(T) values of 30 illustrative low-volatility fluids—including representative imidazolium-, ammonium-, and pyrrolidinium-based aprotic ILs; examples of protic, polymeric, and di-cationic ILs; as well as deep eutectic solvents (DESs) and glycols—were determined using a simple, convenient, and reproducible isothermal thermogravimetric method. Guided by this “vapor pressure map”, observed trends can be discussed in terms of anion basicity, cation geometry, alkane chain length, hydrogen bonding strength, and van der Waals forces, providing a context for the placement of theoretical and experimental vapor pressures gleaned in future IL and DES studies.

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Section: Vapor Pressures Of Protic Ilsmentioning

confidence: 86%

Vapor Pressure Mapping of Ionic Liquids and Low-Volatility Fluids Using Graded Isothermal Thermogravimetric Analysis

et al. 2019

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“…Sources for water and benzene data are from ref (298 K, 1 atm pressure) unless otherwise specified. IL data are from references as follows: b From ref . c From ref . d From ref (at 106 °C). e From ref . f From ref . g From ref . h From ref . i From ref . j From ref . k From ref . l From ref . m From ref . n From ref . o From ref . p From ref . q From ref . r From ref . s From ref . t From ref . u From ref . v From ref . w From ref . x From ref . …”

Section: Liquid Saltsmentioning

confidence: 99%