Ionic liquids (ILs) are a class of low melting point, ionic compounds which have a variety of properties allowing many of them to be sustainable green solvents. These non-molecular solvents possess high thermal stabilities and negligible vapour pressures making them attractive alternatives to environmentally unfriendly solvents that produce volatile organic compounds (VOCs). In this book, the authors present research on the properties, applications and hazards of ionic liquids. Some of the topics discussed include challenges and perspectives of ionic liquids vs. traditional solvents for cellulose processing; ionic liquids as sustainable extractants in petrochemical processing; bronsted acid-base ionic liquids and membranes as ion conducting materials; and, physical and chemical properties of ionic liquids.
This comprehensive database on physical properties of pure ionic liquids (ILs) contains data collected from 269 peer-reviewed papers in the period from 1982 to June 2008. There are more than 9,400 data points on the 29 kinds of physicochemical properties for 1886 available ionic liquids, from which 807 kinds of cations and 185 kinds of anions were extracted. This book includes nearly all known pure ILs and their known physicochemical properties through June 2008. In addition, the authors incorporate the main applications of individual ILs and a large number of references. - Nearly 50 tables include typical data, experimental and modelling or simulation comparison, and model parameters, enhancing the application of ILs - 100 figures--from QSPR, EOS and gE models to quantum and molecular simulations--help readers understand ILs at molecular level - Applications illustrate the role of IL properties in industry, in particular the development of novel clean processes and products
Ionic liquids in Analytical Chemistry: New Insights and Recent Developments focuses on the use of these materials in the field of chemical analysis, paying attention to different areas such as sample preparation, separation techniques, spectroscopy and electrochemical methods. Chapters describe the structure and properties of new ionic liquids and eutectic solvents that are widely used in analytical chemistry, review ionic liquids in sample preparation, liquid, micellar liquid and gas chromatography, and capillary electrophoresis. Final chapters are devoted to spectroscopic and electrochemical techniques. The whole volume provides a broad overview of recent applications of ionic liquids. The book will serve as a valuable resource to researchers and laboratory technicians working in the field, as well as instructors and students of analytical chemistry. Gathers the contributions of leading authorities on the use of ionic liquids in analytical science Describes the structure and properties of the newer ionic liquids used in chemical analysis Examines the new performance of ionic liquids in analytical chemistry applications
Sustainability, defined as the way to meet the needs of the present generation without compromising the ability of future ones to meet their own, is one of the main challenges of modern society. Within this context, chemistry plays a significant role, and solvent nature as well as its environmental impact are pivotal issues frequently addressed. Ionic liquids, i.e. organic salts that have melting temperatures lower than 100 °C, have been frequently hailed as alternatives to conventional organic solvents. Their greenness has been mainly ascribed to their low vapor pressure and flammability. However, in addition to this, their high solubilizing ability and low miscibility with conventional organic solvents frequently allow for reducing the amount used, as well as for their recycling. Ionic liquids, especially the ones featured by aromatic cations, are frequently described as “polymeric supramolecular fluids” constructed through the establishment of feeble but cooperative supramolecular interactions like Coulomb and π-π interactions, as well as hydrogen bonds. In general, ionic liquids are also indicated as “designer solvents” as it is possible to tailor their features to specific applications by simply modifying their cation or anion structure. In this way, small changes in the ion’s structure can give rise to solvents showing very different properties. The above premises widely justify the growing interest in the properties and applications of ionic liquids, seen in recent literature (according to Scopus, more than 27,000 papers published in the last five years have “ionic liquids” as a keyword). Thanks to their properties, they have been variously used as solvent media, solvents for the obtainment of gel phases, components in the building of dye-sensitized solar cells, media for the preparation of thermochromic materials, etc. This Research Topic aims to present how structural features can determine not only the properties of ionic liquids, but also their possible employment. In this latter case, the interest arises from their ability to affect the outcome of a given reaction in terms of rate, yield, and nature of the products obtained for general use in the field of materials chemistry. This article collection is dedicated to Prof. Kenneth R. Seddon for his outstanding contribution to the formation and development of the ionic liquids community.
Application, Purification, and Recovery of Ionic Liquids provides a comprehensive overview of the usage of ionic liquids (IL). The book gives a description of the methods used for recovery and purification of ILs, a summary of the economic aspects of using ILs, and a review on the toxicity data of ILs. It is written for researchers, scientists, and engineers working with ILs, their properties, and usages. The book not only describes the chemical aspects, but the economic and environmental aspects as well, making it of particular interest to professionals applying this technology. - Chapters written by scientists in academia and researchers in industry, ensuring coverage of both the scientific fundaments and industrial applications - A single source of information for a broad collection of recovery and purification methods - Provides information on using ionic liquids as green solvents - Includes economic aspects of recovery and reuse of ionic liquids
Written by experts who have been part of this field since its beginnings in both research and academia, this textbook introduces readers to this evolving topic and the broad range of applications that are being explored. The book begins by examining what it is that defines ionic liquids and what sets them apart from other materials. Chapters describe the various types of ionic liquids and the different techniques used to synthesize them, as well as their properties and some of the methods used in their measurement. Further chapters delve into synthetic and electrochemical applications and their broad use as "Green" solvents. Final chapters examine important applications in a wide variety of contexts, including such devices as solar cells and batteries, electrochemistry, and biotechnology. The result is a must-have resource for any researcher beginning to work in this growing field, including senior undergraduates and postgraduates.
Ionic Liquids in Separation Technology reports on the most important fundamental and technological advances in separation processes using ionic liquids. It brings together the latest developments in this fascinating field, supplements them with numerous practical tips, and thus provides those working in both research and industry with an indispensable source of information. The book covers fundamental topics of physical, thermal, and optical properties of ionic liquids, including green aspects. It then moves on to contexts and applications, including separation of proteins, reduction of environmental pollutants, separation of metal ions and organic compounds, use in electrochromic devices, and much more. For the specialist audience the book serves as a recompilation of the most important knowledge in this field, whereas for starting researchers in ionic liquid separation technology the book is a great introduction to the field. - First book in the marketplace dedicated to ionic liquids in separation technology - Contributions from scientists in academia and researchers in industry ensure the coverage of both scientific fundamentals and industrial applications - Covers a broad collection of applications in separation technology which makes the book a single source of information - Includes many practical tips for researchers in industry and scientists who apply ionic liquids in their work
Because of their unique properties and fascinating features, ionic liquids have numerous potential applications in engineering, analytics, physical chemistry, electrochemistry, tribology, and biology. This book discusses the thermophysical properties and other features of these emerging liquids. It also presents different methods of their production, as well as examines their potential use as new lubricants or lubricant additives and in gas chromatography. In addition, the book provides an archeological, historical, and technological background of alkali and alkali–earth salts and hydroxides. The book is a useful resource for students, researchers, engineers, manufacturers, academicians, and professionals working in the field of ionic liquids for real-world applications.
This book provides an overview of the current and emerging industrial applications of ionic liquids, covering the core processes, the practical implementation and technical challenges involved, and exploring potential future directions for research and development. The introductory chapter describes the unique physical and chemical properties of ionic liquids, and illustrates the vast potential for application of these materials across the industrial landscape. Following this, individual chapters written by leading figures from industry and academia address specific processes and products, such as the development of a new chloroaluminate ionic liquid as an alkylation catalyst and a new class of capillary gas chromatography (GC) columns with stationary phases based on ionic liquids. Over the past twenty years, ionic liquids have moved from being considered as mere academic curiosities to having genuine applications in fields as wide-ranging as biotechnology, biorefineries, catalysis, pharmaceuticals, renewable fuels, and sustainable energy. This book highlights several commercial products and processes that use or will soon be using ionic liquids.
