This book provides a comprehensive account of developments in the area of lightweight polymer composites. It encompasses design and manufacturing methods for the lightweight polymer structures, various techniques, and a broad spectrum of applications. The book highlights fundamental research in lightweight polymer structures and integrates various aspects from synthesis to applications of these materials. Features Serves as a one stop reference with contributions from leading researchers from industry, academy, government, and private research institutions across the globe Explores all important aspects of lightweight polymer composite structures Offers an update of concepts, advancements, challenges, and application of lightweight structures Current status, trends, future directions, and opportunities are discussed, making it friendly for both new and experienced researchers.

A dangerous byproduct of industrial progress is often an increase of pollutants discharged into the environment. These pollutants are often harmful to plants and animals, including humans. They also damage buildings and architectural and cultural monuments. This handbook describes many of the important physico-chemical properties of inorganic and organic substances found in industrial wastes and describes their toxic effects on humans.

Magnesium is one of the most abundant minerals in seawater. Extracting magnesium from seawater could reduce cost of this mineral, resulting in positive implications for industries that use it. This book addresses mineral process engineering with emphasis on magnesium and provides practicing engineers and students with comprehensive knowledge on magnesium and how it is extracted from seawater and magnesium ores. It takes a chemical engineering approach as separation of magnesium from seawater involves the application of the powerful science of chemistry and transport phenomena principles. This monograph discusses magnesium resources and occurrence, includes an exploration study on deriving magnesium and mineral salts from seawater, and features coverage of magnesium chloride. It also covers commercial methods for magnesium production as an end product, current and prospective applications in the energy domain, and offers an account of the use of magnesium to store hydrogen in the form of magnesium hydride.

Describes various electrochemical processes related to the renewable compounds, including hydrogen evolution, oxygen evolution, oxygen reduction, carbon dioxide reduction, nitrogen reduction, methanol oxidation, urea oxidation and ammonia oxidation. Highlights fundamental aspects, catalysts designing principles and measurement criteria of different electrochemical transformations. Covers the important electrocatalysts, including transition metal phosphide-based electrocatalysts, earth-abundant electrocatalysts, graphene-supported nanomaterials, self-supported nanoarrays, single-atom catalysts and MOFs derived electrocatalysts. Explores the strategies and mechanisms for improving the electrocatalytic performance of various electrocatalysts. Discusses future development of renewable compounds produced by electrochemical transformation.

This superb CGP Student Book has everything students will need for success in Year 2 of AQA A-Level Chemistry - and it's fully up-to-date for the new specifications for 2015 and beyond! It contains in-depth, accessible notes explaining every topic, supported by clear diagrams, photographs, tips and worked examples. To test students' knowledge and understanding, there are practice questions and exam-style questions throughout the book - with complete answers included. There's also detailed guidance on Maths Skills, Practical Investigations and indispensable advice for success in the final exams. An access-code for a free Online Edition is also included, allowing you to read the entire book on a PC, Mac or tablet.

Taking an interdisciplinary approach, this new volume brings together innovative research, new concepts, and novel developments in the application of new tools in green chemistry and sustainable technology. The diverse coverage includes chapters on ionic liquids as green solvents, an environmentally friendly approach to the synthesis and biological evaluation of -aminophosphonate derivatives, the application of nanotechnology in biological sciences and green chemistry, eco-friendly polymers, the effect of global warming and greenhouse gases on environmental system, and more.

Written by chemists for chemists, this is a comprehensive guide to the important radionuclides as well as techniques for their separation and analysis. It introduces readers to the important laboratory techniques and methodologies in the field, providing practical instructions on how to handle nuclear waste and radioactivity in the environment.

A comprehensive, illustrated identification guide for beginners and serious collectors alike, featuring special colour photography of specimens held at the Natural History Museum, London. Rocks are minerals are naturally occurring compounds formed by intense geological processes in the Earth's crust such as volcanic eruptions. With striking colour photography of rocks and minerals from around the globe, this detailed and easy-to-use guide is designed to help readers identify specimens and begin collecting. Fully fact checked by the Department of Mineralogy at the Natural History Museum, London, this guide will give you geological knowledge at your fingertips.

This timely book provides a succinct summary of methods for the synthesis of bioactive heterocycles using a multicomponent reaction (MCR) approach. The majority of pharmaceuticals and biologically active agrochemicals are heterocycles while countless additives and modifiers used in industrial applications are heterocyclic in nature. With the recent introduction of high-throughput biological evaluation, the importance of MCRs for drug discovery has been recognized and considerable efforts have been focused especially on the design and development of multi-component procedures for the generation of various bioactive heterocycles due to their significant therapeutic potential.

Nanotechnologies represent a fast-growing market and this unique volume highlights the current studies in applied sciences on sustainability of green science and technology. The chapters include modelling, machine learning, nanotechnology, nanofluids, nanosystems, smart materials and applications and solar and fuel cells technology. The authors cover simulation, additive manufacturing, machine learning and the autonomous system. Various aspects of green science as well as trans-disciplinary topics between fundamental science and engineering are presented.The book is suitable for all postgraduates and researchers working in this rapid growing research area. Features Presenting latest research on green materials and sustainability. Provide in depth discussion on modeling and simulation using latest techniques. Technical exposure for the readers on additive manufacturing principles. Numerous examples on nanofluids and nano technology are presented. Discusses computer modeling, superconductivity, nanotubes and related structures such as graphene.

Features Edited by established authorities in the field, with chapter contributions from subject area specialists. Provides a comprehensive review of the field. Up to date with the latest developments and cutting-edge research.

A readable little book assisting the student in understanding, in a nonmathematical way, the essentials of the different bonds occurring in chemistry. Starting with a short, self-contained,introduction, Chapter 1 presents the essential elements of the variation approach to either total or second-order molecular energies, the system of atomic units (au) necessary to simplify all mathematical expressions, and an introductory description of the electron distribution in molecules. Using mostly 2x2 Huckel secular equations, Chapter 2, by far the largest part of the book because of the many implications of the chemical bond, introduces a model of bonding in homonuclear and heteronuclear diatomics, multiple and delocalized bonds in hydrocarbons, and the stereochemistry of chemical bonds in polyatomic molecules, in a word, a model of the strong first-order interactions originating the chemical bond. In Chapter 3 the Huckel model of the linear polyene chain is used to explain the origin of band structure in the 1-dimensional crystal. Chapter 4 deals with a simple two-state model of weak interactions, introducing the reader to understand second-order electric properties of molecules and VdW bonding between closed shells. Lastly, Chapter 5 studies the structure of H-bonded dimers and the nature of the hydrogen bond, which has a strength intermediate between a VdW bond and a weak chemical bond. Besides a qualitative MO approach based on HOMO-LUMO charge transfer from an electron donor to an electron acceptor molecule, a quantitative electrostatic approach is presented yielding an electrostatic model working even at its simplest pictorial level. A list of alphabetically ordered references, author and subject indices complete the book.

This book focuses on flame retardants (FR) for textile materials. It discusses basics of flame retardancy and flammability and covers various types of flame retardants and materials, including natural FRs, halogen, phosphorous, and nanomaterial-based FRs. This book also discusses methods of applications of FRs and discusses FRs and the environment. Covers a variety of interdisciplinary applications in the textile industry Emphasizes environmental aspects Reports on a large number of FR compounds studied globally Discusses in detail recent developments in halogen-free eco-friendly flame retardants Extensively describes basic aspects of flame retardancy and their measurements Aimed at the practitioner and textile engineering professional this work aims to ensure development of safe textile materials for various uses, including apparel, protective wear, floor coverings, upholstery, drapery, and others.

Researchers in chemistry, chemical engineering, pharmaceutical science, forensics, and environmental science make routine use of chemical analysis, but the information these researchers need is often scattered in different sources and difficult to access. The CRC Handbook of Basic Tables for Chemical Analysis: Data-Driven Methods and Interpretation, Fourth Edition is a one-stop reference that presents updated data in a handy format specifically designed for use when reaching a decision point in designing an analysis or interpreting results. This new edition offers expanded coverage of calibration and uncertainty, and continues to include the critical information scientists rely on to perform accurate analysis. Enhancements to the Fourth Edition: Compiles a huge array of useful and important data into a single, convenient source Explanatory text provides context for data and guidelines on applications Coalesces information from several different fields Provides information on the most useful "wet" chemistry methods as well as instrumental techniques, with an expanded discussion of laboratory safety Contains information of historical importance necessary to interpret the literature and understand current methodology. Unmatched in its coverage of the range of information scientists need in the lab, this resource will be referred to again and again by practitioners who need quick, easy access to the data that forms the basis for experimentation and analysis.

First published in 1963. Humphry Davy, knighted by the Prince Regent in 1812 for his contributions to science, and later created baronet for his invention of the miners' safety lamp, was among the foremost European chemists in the early nineteenth century. Anne Treneer tells in full the story of Humphry Davy's life. From letters, journals and memoirs of the time, Davy and his contemporaries come to life. This title will be of great interest to scientists and historians.

This practical book sets the standard as a valuable, time-saving resource offering systematic fundamental information about industrial radiation technologies. This new edition explores updates to emerging applications of ultraviolet (UV) and electron beam (EB) radiation to polymer processing and offers updates throughout to detail changes changes, new trends, and general issues in radiation technology. It presents vital, cutting-edge information to aid further reduction of volatile organic compounds and toxic substances in the environment, develop alternative sources of energy, and harness energy in both medical and industrial applications. New features of this edition include: Stresses the practical aspects of UV/EB technology and its industrial application Includes updates on UV radiation processes and applications of UV radiation Explores new engineering data of selected commercial products Written by an expert with over forty years of experience, this book would make an excellent resource for scientists and engineers in the fields of materials science and polymer chemistry.

Nitroalkenes have often been referred to as "synthetic chameleons" owing to their reactivity, synthetic utility and biological significance. In the last two decades, the reactivity of nitroalkenes as substrates in diverse catalytic asymmetric transformations has been of tremendous interest on account of the powerful abilities of the nitro group to coordinate and withdraw electrons, as well as its amenability to undergo a wide variety of synthetic transformations. Although numerous original articles and reviews have appeared in the literature, a monograph providing a comprehensive coverage of this topic was conspicuous by its absence. This book features: A systematic, up-to-date, in-depth and well-organized compilation, spread over 12 chapters, of various catalytic asymmetric reactions of nitroalkenes with diverse substrates reported to date A wide coverage of reactions such as Michael additions, Friedel-Crafts reactions, cycloadditions, asymmetric reductions, multicomponent and cascade reactions, as well as other miscellaneous reactions Various chiral organo, metal and even biocatalysts involved in the stereoselective synthesis of multifunctional adducts via catalytic asymmetric reactions of nitroalkenes Schemes and figures detailing all the reagents, reaction conditions and product profiles Mechanistic details, including transition state models, which will be useful for effective catalytic design This book will be an invaluable resource for those who are working in the area of asymmetric catalysis and synthetic methodologies.

Rauvolfia species, commonly known as Sarpagandha, has been traditionally used in Ayurveda for curing high blood pressure, hypertension, snake bites, fever, and mental illnesses. Due to its wide variety and differences in chemical composition, it is necessary to develop an efficient and reliable method for rapid screening and determination of phytochemicals in the extracts of the Rauvolfia species. This book will provide qualitative and quantitative comparative phytochemical investigations of selected medicinal plants from the Rauvolfia genus using liquid chromatography-mass spectrometry (LC-MS) techniques. The results will help in assuring the efficacy and safety of Rauvolfia herbal products. Features: Collection of Ayurvedic features and scientific evidence of important medicinal plants. Discusses chemical signatures for the identification of Rauvolfia (Sarpagandha) and its products. Easy-to-use analytical procedure for quality control of Rauvolfia and its products.

First published in 1967. The impression is sometimes given that the Atomic Theory was revived in the early years of the nineteenth century by John Dalton, and that continuously from then on it has played a vital role in chemistry. The aim of this study is to revise this over-simplified picture. Atomic explanations seemed to chemists to go beyond the facts, to fail to lend themselves to mathematical expression, and to deny the ultimate simplicity and unity of all matter. Most, therefore, rejected them. Meanwhile, physicists were developing a whole range of atomic theories to explain the physical properties of bodies in terms of very simple atoms or particles. During the last thirty years of the century the position changed, as physicists and chemists came to agree on a common atomic theory. But the last prominent opponents of atomism were not converted until the early years of the twentieth century, by which time studies of radioactivity had made it clear that the billiard-ball Daltonian atom must, in any case, be abandoned.

Organic Reaction Mechanisms 2013, the 49th annual volume in this highly successful and unique series, surveys research on organic reaction mechanisms described in the available literature dated 2013. The following classes of organic reaction mechanisms are comprehensively reviewed: * Reaction of Aldehydes and Ketones and their Derivatives * Reactions of Carboxylic, Phosphoric, and Sulfonic Acids and their Derivatives * Oxidation and Reduction * Carbenes and Nitrenes * Nucleophilic Aromatic Substitution * Electrophilic Aromatic Substitution * Carbocations * Nucleophilic Aliphatic Substitution * Carbanions and Electrophilic Aliphatic Substitution * Elimination Reactions * Polar Addition Reactions * Cycloaddition Reactions * Molecular Rearrangements An experienced team of authors compile these reviews every year, so that the reader can rely on a continuing quality of selection and presentation.

Tinospora cordifolia stem is used as a tonic, vitalizer, and as a remedy for metabolic disorders to treat allergies, diabetes, dysentery, jaundice, heart diseases, leprosy, rheumatoid arthritis, skin diseases, and urinary disorders. It shows anti-inflammatory, analgesic, antipyretic actions and immunosuppressive effects. This book focuses on providing gender and geographical location-based differences in the phytoconstituents of T. cordifolia by the liquid chromatography mass spectrometric method. These methods have potential use in the quality control of T. cordifolia and the screening of herbal preparations. Features: Compilation of ayurvedic features of one of the most important plants of the Indian system of medicines. Useful for all ayurvedic practitioners, researchers, faculty, students, and herbal product manufacturers. Application of advance hyphenated LC-MS techniques for variation study in phytoconstituents.

Piper betle (betel vine) a pan-Asiatic, tropical plant, which can also grow under mild subtropical areas, is essentially grown for leaves which are chewed with array of additives besides slaked lime. The plant is cultivated widely in India and its surrounding areas. Phytochemistry of Piper betel landraces presents a brief on the distribution, historical and cultural aspects, and properties ascribed to this plant in the ancient texts. Phytochemical and pharmacological information has also been included to underscore the importance of this plant in the present time. A detailed account on metabolic profiling employing modern methods is included, such as real-time, direct analysis of the flight mass spectrometric method and chemometric analysis for characterization of the available biodiversity and signatures specific to gender and geographical location. It was also possible to identify the gender of unknown landraces, with the help of principal component analysis. Features: Elaborates on the chemical diversity within Piper betle. Piper betle leaves have mouth freshening antimicrobial compounds. Use of chemical signatures for the identification of different Piper betle landraces, their gender and geographical locations.

Leading readers through an extensive compilation of surface modification reactions and processes for specific tribological results, this reference compiles detailed studies on various residual stresses, reaction processes and mechanisms, heat treatment methods, plasma-based techniques, and more, for a solid understanding of surface structural changes that occur during various engineering procedures. This unique book explores topics previously ignored in other texts on surface engineering and tribology, offers guidelines for the consideration and design of wear life and frictional performance, and sections on laser impingement and nanometer scale surface modification.

Polymer Processing Instabilities: Control and Understanding offers a practical understanding of the various flows that occur during the processing of polymer melts. The book pays particular attention to flow instabilities that affect the rate of production and the methods used to prevent and eliminate flow instabilities in order to increase production rates and enhance manufacturing efficiency. Polymer Processing Instabilities: Control and Understanding summarizes experimental observations of flow instabilities that occur in numerous processing operations such as extrusion, injection molding, fiber spinning, film casting, and film blowing for a wide range of materials, including most commodity polymers that are processed as melts at temperatures above their melting point or as concentrated solutions at lower temperatures. The book first presents the fundamental principles in rheology and flow instabilities. It relates the operating conditions with flow curves, the critical wall shear stress for the onset of the instabilities, and new visualization techniques with numerical modeling and molecular structure. It reviews one-dimensional phenomenological relaxation/oscillation models describing the experimental pressure and flow rate oscillations, analyzes the gross melt fracture (GMF) instability, and examines how traditional and non-traditional processing aids eliminate melt fracture and improve polymer processability. It supplies a numerical approach for the investigation of the linear viscoelastic stability behavior of simplified injection molding flows and examines a newly discovered family of instabilities that occur in co-extrusion. Polymer Processing Instabilities: Control and Understanding is unique in that it fills a gap in the polymer processing literature where polymer flow instabilities are not treated in-depth in any book. It summarizes state-of-the-art developments in the field, particularly those of the last ten years, and contains significant data based on this research.

Over the last decade, scientific and engineering interests have been shifting from conventional ion mobility spectrometry (IMS) to field asymmetric waveform ion mobility spectrometry (FAIMS). Differential Ion Mobility Spectrometry: Nonlinear Ion Transport and Fundamentals of FAIMS explores this new analytical technology that separates and characterizes ions by the difference between their mobility in gases at high and low electric fields. It also covers the novel topics of higher-order differential IMS and IMS with alignment of dipole direction. The book relates the fundamentals of FAIMS and other nonlinear IMS methods to the physics of gas-phase ion transport. It begins with the basics of ion diffusion and mobility in gases, covering the main attributes of conventional IMS that are relevant to all IMS approaches. Building on this foundation, the author reviews diverse high-field transport phenomena that underlie differential IMS. He discusses the conceptual implementation and first-principles optimization of FAIMS as a filtering technique, emphasizing the dependence of FAIMS performance metrics on instrumental parameters and properties of ion species. He also explores ion reactions in FAIMS caused by field heating and the effects of inhomogeneous electric field in curved FAIMS gaps. Written by an accomplished scientist in the field, this state-of-the-art book supplies the foundation to understand the new technology of nonlinear IMS methods.