Download or read book Molybdenum written by E.R. Braithwaite and published by Elsevier. This book was released on 2013-10-22 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molybdenum is an element with an extremely rich and interesting chemistry having very versatile applications in various fields of human activity. It is used extensively in metallurgical applications. Because of their anti-wear properties, molybdenum compounds find wide applications as lubricants - particularly in extreme or hostile environmental situations. Many molybdates and heteropolymolybdates are white and therefore used as pigments. In addition, they are non-toxic and act as efficient corrosion inhibitors and smoke suppressants. Hydroprocessing of petroleum is one of the largest industries employing heterogeneous catalysts. Molybdenum catalysts have shown great promise in the liquefaction of coal and this may develop into one of its most important catalytic uses. The use of molybdenum compounds in homogeneous catalysis is also significant. Three important classes of molybdenum compounds in the solid state are reviewed, viz., oxides, sulphides and halides. The role of molybdenum in inorganic catalysis and enzymes receives prominent mention because of their impact on the progress of science and technology. Further biochemical and enzymic factors are discussed in separate chapters and their reaction to agriculture and animal husbandry. A new classification of covalent compounds which abandons the traditional oxidation state concept allows a powerful approach to the organisation of the complex and rich chemistry of molybdenum. Dramatic colour diagrams of abundances of molybdenum compounds provide broad insights into the important features and trends in the chemistry of molybdenum including reactivity and mechanism. The book is intended for use mainly as a research monograph by the many workers who may encounter molybdenum chemistry or who are looking for its application and potential uses in different technological fields. However, it will also serve as an advanced text for university lecturers and postgraduate students interested in inorganic, physical and industrial chemistry, chemical technology or biochemistry and biotechnology.
Download or read book Modern Synthesis Processes and Reactivity of Fluorinated Compounds written by Henri Groult and published by Elsevier. This book was released on 2016-11-04 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Synthesis Processes and Reactivity of Fluorinated Compounds focuses on the exceptional character of fluorine and fluorinated compounds. This comprehensive work explores examples taken from all classes of fluorine chemistry and illustrates the extreme reactivity of fluorinating media and the peculiar synthesis routes to fluorinated materials. The book provides advanced and updated information on the latest synthesis routes to fluorocompounds and the involved reaction mechanisms. Special attention is given to the unique reactivity of fluorine and fluorinated media, along with the correlation of those properties to valuable applications of fluorinated compounds. - Contains quality content edited, and contributed, by leading scholars in the field - Presents applied guidance on the preparation of original fluorinated compounds, potentially transferable from the lab scale to industrial applications - Provides practical synthesis information for a wide audience interested in fluorine compounds in many branches of chemistry, materials science, and physics
Download or read book Handbook of Non Ferrous Metal Powders written by Oleg D Neikov and published by Elsevier. This book was released on 2009-02-24 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacture and use of the powders of non-ferrous metals has been taking place for many years in what was previously Soviet Russia, and a huge amount of knowledge and experience has built up in that country over the last forty years or so. Although accounts of the topic have been published in the Russian language, no English language account has existed until now.Six prominent academics and industrialists from the Ukraine and Russia have produced this highly-detailed account which covers the classification, manufacturing methods, treatment and properties of the non-ferrous metals ( aluminium, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, lead, tin, bismuth, noble metals and earth metals).The result is a formidable reference source for those in all aspects of the metal powder industry. - Covers the manufacturing methods, properties and importance of the following metals: aluminium, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, noble metals, rare earth metals, lead, tin and bismuth - Expert Russian team of authors, all very experienced - English translation and update of book previously published in Russian
Download or read book Molybdenum written by Nathan Lepora and published by Marshall Cavendish. This book was released on 2007 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the origin, discovery, special characteristics, and uses of molybdenum.
Download or read book Molybdenum and Molybdenum Containing Enzymes written by Michael P. Coughlan and published by Elsevier. This book was released on 2014-06-28 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molybdenum and Molybdenum-Containing Enzymes is a collection of papers that deals with the various concerns with molybdenum-containing enzymes. The text first covers the organometallic chemistry of molybdenum, and then proceeds to tackling molybdenum-containing enzymes, such as xanthine oxidase, aldehyde oxidase, and sulphite oxidase. The text also discusses the advancement in the understanding of molybdenum-containing enzymes. The remaining chapters deal with the genetics of molybdoenzymes and the nutritional aspects of molybdenum. The book will be of great use to students, researchers, and practitioners of biochemistry.
Download or read book Dietary Reference Intakes for Vitamin A Vitamin K Arsenic Boron Chromium Copper Iodine Iron Manganese Molybdenum Nickel Silicon Vanadium and Zinc written by Institute of Medicine and published by National Academies Press. This book was released on 2002-07-19 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the newest release in the authoritative series issued by the National Academy of Sciences on dietary reference intakes (DRIs). This series provides recommended intakes, such as Recommended Dietary Allowances (RDAs), for use in planning nutritionally adequate diets for individuals based on age and gender. In addition, a new reference intake, the Tolerable Upper Intake Level (UL), has also been established to assist an individual in knowing how much is "too much" of a nutrient. Based on the Institute of Medicine's review of the scientific literature regarding dietary micronutrients, recommendations have been formulated regarding vitamins A and K, iron, iodine, chromium, copper, manganese, molybdenum, zinc, and other potentially beneficial trace elements such as boron to determine the roles, if any, they play in health. The book also: Reviews selected components of food that may influence the bioavailability of these compounds. Develops estimates of dietary intake of these compounds that are compatible with good nutrition throughout the life span and that may decrease risk of chronic disease where data indicate they play a role. Determines Tolerable Upper Intake levels for each nutrient reviewed where adequate scientific data are available in specific population subgroups. Identifies research needed to improve knowledge of the role of these micronutrients in human health. This book will be important to professionals in nutrition research and education.
Download or read book Molybdenum Disulphide Lubrication written by A.R. Lansdown and published by Elsevier. This book was released on 1999-05-28 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1970s and the early 1980s there was an enormous volume of research and development into the subject of molybdenum disulphide lubrication, much of which was supported by national governments for the benefit of defence, aviation or space activities. There were already some well-established practical guidelines for deciding when and how to use molybdenum disulphide, but there was still a considerable lack of universally-accepted theoretical understanding of some of the important and fundamental aspects of molybdenum disulphide technology. However, the state of knowledge was growing rapidly.In the past fifteen years the situation with regard to the technology of molybdenum disulphide lubrication has stabilised in many respects, and a measure of consensus has been reached about some of the mechanisms involved. The use of molybdenum disulphide has become routine in some industries, and there are many well-established and reputable commercial products available. Except in the high-technology field of physical deposition techniques, especially sputtering, the output of new research publications has fallen from perhaps two hundred a year in the 1970s to fewer than ten a year in the 1990s. In spite of this maturing of the subject, it is clear that there are still many aspects in which disagreements persist about the mechanisms involved, and which as a result are unclear or misunderstood among current, and perhaps even more importantly, potential users.One of the primary objectives of this book is to analyse the various aspects of molybdenum disulphide lubrication technology about which there are still disagreements or controversy, and to attempt to come to firm conclusions about some of the mechanisms involved. In particular, it will place emphasis on the importance and effects of burnishing and film consolidation.
Download or read book The Elements Beyond Uranium written by Glenn T. Seaborg and published by John Wiley & Sons. This book was released on 1991-01-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by Glenn T. Seaborg, Nobel Laureate and pre-eminent figure in the field, with the assistance of Walter D. Loveland, it covers all aspects of transuranium elements, including their discovery, chemical properties, nuclear properties, nuclear synthesis reactions, experimental techniques, natural occurrence, superheavy elements, and predictions for the future. Published on the fiftieth anniversary of the discovery of transuranium elements, it conveys the essence of the ideas and distinctive blend of theory and experiment that has marked their study.
Download or read book Extractive Metallurgy of Molybdenum written by C. K. Gupta and published by CRC Press. This book was released on 1992-01-13 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extractive Metallurgy of Molybdenum provides an up-to-date, comprehensive account of the extraction and process metallurgy fields of molybdenum. The book covers the history of metallurgy of molybdenum from its beginnings to the present day. Topics discussed include molybdenum properties and applications, pyrometallurgy of molybdenum, hydrometallurgy of molybdenum, electrometallurgy of molybdenum, and a survey of molybdenum resources and processing. The book will be a useful reference for metallurgists, materials scientists, researchers, and students. It will also be an indispensable guide for world producers, processors, and traders of molybdenum.
Download or read book Trace Elements in Terrestrial Environments written by Domy C. Adriano and published by Springer Science & Business Media. This book was released on 2013-03-19 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference handbook on the important aspects of trace elements in the land environment. Each chapter addresses a particular element and gives a general introduction to their role in the environment, where they come from, and their biogeochemical cycles. In addition to a complete updating of each of the element chapters, this new edition has new chapters devoted to aluminum and iron, soil contamination, remediation and trace elements in aquatic ecosystems. In short, an essential resource for environmental scientists and chemists, regulators and policy makers.
Download or read book Molybdenum Enzymes written by Thomas G. Spiro and published by Wiley-Interscience. This book was released on 1985-11-14 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 7 in the Metal Ions in Biology Series, divided into two parts, covers the nitrogenase enzyme complex and the molybdenum redox enzymes. Part one covers the chemistry of Mo-Fe-S clusters and their relationship to nitrogenase, cofactor chemistry and biochemistry of nitrogenase, spectroscopic and electrochemical studies of the Fe-Mo cofactor and Fe-S clusters, and more. Part Two surveys oxo-molybdenum chemistry, discusses the nature of the molybdo-pterin complex, and describes the characteristics of several of the Mo redox enzymes.
Download or read book Nature s Building Blocks written by John Emsley and published by Oxford University Press, USA. This book was released on 2003 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: A readable, informative, fascinating entry on each one of the 100-odd chemical elements, arranged alphabetically from actinium to zirconium. Each entry comprises an explanation of where the element's name comes from, followed by Body element (the role it plays in living things), Element ofhistory (how and when it was discovered), Economic element (what it is used for), Environmental element (where it occurs, how much), Chemical element (facts, figures and narrative), and Element of surprise (an amazing, little-known fact about it). A wonderful 'dipping into' source for the familyreference shelf and for students.
Download or read book Fish Physiology Homeostasis and Toxicology of Essential Metals written by and published by Academic Press. This book was released on 2011-08-11 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homeostasis and Toxicology of Essential Metals synthesizes the explosion of new information on the molecular, cellular, and organismal handling of metals in fish in the past 15 years. These elements are no longer viewed by fish physiologists as "heavy metals" that kill fish by suffocation, but rather as interesting moieties that enter and leave fish by specific pathways, which are subject to physiological regulation. The metals featured in this volume are those about which there has been most public and scientific concern, and therefore are those most widely studied by fish researchers. Metals such as Cu, Zn, Fe, Ni, Co, Se, Mo and Cr are either proven to be or are strongly suspected to be essential in trace amounts, yet are toxic in higher doses. The companion volume, Homeostasis and Toxicology of Non-Essential Metals, Volume 31B, covers metals that have no known nutritive function in fish at present, but which are toxic at fairly low levels, such as Ag, Al, Cd, Pb, Hg, As, Sr, and U. In addition, three chapters in Volumes 31A and 31B on Basic Principles (Chapter 1, 31A), Field Studies and Ecological Integration (Chapter 9, 31A) and Modeling the Physiology and Toxicology of Metals (Chapter 9, 31B) act as integrative summaries and make these two volumes a vital set for readers. All major essential metals of interest are covered in metal-specific chapters Each metal-specific chapter is written by fish physiologists/toxicologists who are recognized authorities for that metal A common format is featured throughout this two volume edition
Download or read book Diet and Health written by National Research Council and published by National Academies Press. This book was released on 1989-01-01 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.
Download or read book Chemistry Of Transition Elements written by M. Satake & Y. Mido and published by Discovery Publishing House. This book was released on 2010 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: The Properties of Transition Elements, Titanium, Zirconium and Hafnium Group IV A, Vanadium, Niobium and Tantalum Group V A, Chromium, Molybdenum and Tungsten Group VI A, Manganese, Technetium and Rhenium Group VII A, Iron, Cobalt and Nickel, The Platinum Metals, Copper, Silver and Gold Group IB, Analytical and Biological Aspects of Transition Metals, Coordination Compounds, Lanthanides & Actinides.
Download or read book Toxicological Risks of Selected Flame Retardant Chemicals written by National Research Council and published by National Academies Press. This book was released on 2000-07-06 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ignition of upholstered furniture by small open flames from matches, cigarette lighters, and candles is one of the leading causes of residential-fire deaths in the United States. These fires accounted for about 16% of civilian fire deaths in 1996. On average, each year since 1990, about 90 deaths (primarily of children), 440 injuries, and property losses amounting to 50 million dollars have resulted from fires caused by the ignition of upholstered furniture by small open flames. Certain commercial seating products (such as aircraft and bus seats) are subject to flammability standards and sometimes incorporate FR-treated upholstery cover materials, but there is no federal-government requirement for residential upholstered furniture, and it is generally not treated with FR chemicals. It is estimated that less than 0.2% of all U.S. residential upholstery fabric is treated with flame-retardant (FR) chemicals. The Consumer Product Safety Act of 1972 created the U.S. Consumer Product Safety Commission (CPSC) as an independent federal regulatory agency whose mission is to protect the public from unreasonable risks of injury and death associated with consumer products. CPSC also administers the Flammable Fabrics Act, under which it regulates flammability hazards and the Federal Hazardous Substances Act (FHSA), which regulates hazardous substances including chemicals. In 1993, the National Association of State Fire Marshals petitioned CPSC to issue a performance-based flammability standard for upholstered furniture to reduce the risk of residential fires. The Commission granted that portion of the petition relating to small open flame ignition risks. In response to concerns regarding the safety of FR chemicals, Congress, in the fiscal year 1999 appropriations report for CPSC, requested that the National Research Council conduct an independent study of the health risks to consumers posed by exposure to FR chemicals that are likely to be used in residential upholstered furniture to meet a CPSC standard. The National Research Council assigned the project to the Committee on Toxicology (COT) of the Commission on Life Sciences' Board on Environmental Studies and Toxicology. COT convened the Subcommittee on Flame-Retardant Chemicals, which prepared this report. Subcommittee members were chosen for their recognized expertise in toxicology, pharmacology, epidemiology, chemistry, exposure assessment, risk assessment, and biostatistics. Toxicological Risks of Selected Flame-Retardant Chemicals is organized into 18 chapters and two appendices. Chapter 2 describes the risk assessment process used by the subcommittee in determining the risk associated with potential exposure to the various FR chemicals. Chapter 3 describes the method the subcommittee used to measure and estimate the intensity, frequency, extent, and duration of human exposure to FR chemicals. Chapters 4-19 provide the subcommittee's review and assessment of health risks posed by exposure to each of the 16 FR chemicals. Data gaps and research needs are provided at the end of these chapters.
Download or read book Polyoxometalate Chemistry for Nano Composite Design written by Toshihiro Yamase and published by Springer Science & Business Media. This book was released on 2006-04-28 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Chemists from several international polyoxometalate research groups discussed recent results, including: controlled self-organization processes for the preparation of nano-composites; electronic interactions in magnetic mixed-valence cryptands and coronands; synthesis of the novel polyoxometalates with topological or biological significance; systematic investigations in acid-base and/or redox catalysis for organic transformations; and electronic properties in materials science."--Page v
