Download or read book Fixation of Nitrogen with Aqueous Atomic Nitrogen written by Norman N. Lichtin and published by . This book was released on 1977 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planned research involved fixation of nitrogen in organic compounds in reactions of potential synthetic utility in which active nitrogen, mostly N(4S), acted on organic solutes dissolved in water or other unreactive polar solvents. A previously reported conversion of aqueous ethanol to acetamide could not be repeated. HCN(10-30 mole percent) and NH3(0-4 mole percent) were the only identified nitrogenous products of the reaction with aqueous or neat liquid methanol or ethanol. Molecular decomposition to H2, (CH2OH)2 and CH2O is the principal process with CH3OH. Product yields, their dependence on concentration of FeCl3, EPR spectra of radicals trapped with phenyl-t-butyl nitrone and isotopic composition of hydrogen produced from CH3OD show that free H atoms and CH2OH radical are only minor precursors of observed products formed from neat MeOH at -79 C. Products are similar whether N(4S) is introduced by rapid bubbling beneath the surface or impinged upon it but dissolved FeCl3 does not affect yields in the latter case. More limited data obtained with ethanol present a similar picture. The data suggest that energy released upon recombination of nitrogen atoms at or near the gas-liquid interface induces decomposition of methanol or ethanol in localized regions similar to 'spur' regions which characterize radiolysis of water. (Author).
Download or read book Active Nitrogen written by A. Nelson Wright and published by Academic Press. This book was released on 2013-10-22 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical Chemistry, A Series of Monographs: Active Nitrogen presents the methods by which active nitrogen may be produced. This book is composed of five chapters that evaluate the energy content, molecular spectrum, and the emission of active nitrogen. Some of the topics covered in the book are the summary of light-emitting systems of active nitrogen; analysis of Long-Lived Lewis-Rayleigh Afterglow theory and Ionic theory of Mitra; reactions followed by induced light emission; and characteristics of homogeneous recombination. Other chapters deal with the analysis of metastable molecule theories and the mechanisms for reactions of active nitrogen involving direct N(4S) attack. The discussion then shifts to the rate constants for reactions induced by direct N(4S) attack. The evaluation of the Short-Lived Energetic Afterglow theory is presented. The final chapter is devoted to the examination of emission from molecular species with electronic energy levels below 9.76 eV. The book can provide useful information to physicists, students, and researchers.
Download or read book The Chemistry and Biochemistry of Nitrogen Fixation written by J. Postgate and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding of biological nitrogen fixation has advanced with impressive rapidity during the last decade. As befits a developing area of Science, these advances have uncovered information and raised questions which will have, and indeed have had, repercussions in numerous other branches of science and its applications. This 'information explosion', to use one of to-day's cant idioms, was initiated by the discovery, by a group of scientists working in the Central Research laboratories of Dupont de Nemours, U. S. A. , of a reproducibly active, cell-free enzyme preparation from a nitrogen fixing bacterium. Full credit is due to them. But subsequent developments, albeit sometimes quite as impressive, have too often been marked by that familiar disorder of a developing field of research-the scramble to publish. It is a scramble which, at its best, may represent a laudable desire to inform colleagues of the latest developments; yet which too easily develops into an undignified rush for priority, wherewith to impress one's Board of Directors or Grant-giving Institution. This, in miniature, is the tragedy of scientific research to-day: desire for credit causes research to be published in little bulletins, notes and preliminary communications, so that only those intimately involved in the field really know what is happening (and even they may well not see the forest for the trees). Those outside the field, or working in peripheral areas, may glean something of what is going on from reviews and fragments presented at meetings, but the broad pattern of development is often elusive.
Download or read book Managing Nitrogen Mineralization and Biologically Active Organic Matter Fractions in Agricultural Soil written by Thomas C. Willson and published by . This book was released on 1998 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Organic Chemistry of Nitrogen written by Nevil Vincent Sidgwick and published by . This book was released on 1949 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Oxidation of Nitrogen in Organic Molecules written by John W. Gorrod and published by Wiley-VCH. This book was released on 1985 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1973 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fixation of Atmospheric Nitrogen written by Joseph Knox and published by . This book was released on 1914 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation Biology and Ecology written by Sara Langer and published by Murphy & Moore Publishing. This book was released on 2021-11-16 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of converting atmospheric nitrogen into ammonia and other nitrogenous compounds in soil is termed as nitrogen fixation. Most of the biological nitrogen is fixed by prokaryotic bacteria. A few of these are cyanobacteria, azotobacter, azospirillum, rhizobium and bradyrhizobium. Clover, soybean, peanut, etc., are some of the plants which help in nitrogen fixation process. These processes are part of the nitrogen cycle. They are of utmost significance in agriculture as nitrogen is required for the synthesis of various organic compounds like amino acids, nucleic acids and proteins. Nitrogen is also fixed by natural phenomenon such as lightning. It is also responsible for the formation of nitrogen oxides which may react with water to form nitrous acid or nitric acid. The acids seep into the soil where they are converted into nitrates. This book includes some of the vital pieces of work being conducted across the world, on various topics related to nitrogen fixation. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included in it. This book is a vital tool for all researching or studying the biological and ecological aspects of nitrogen fixation as it gives incredible insights into emerging trends and concepts.
Download or read book The Synthesis of Nitrogen Ring Compounds written by Cecil Hollins and published by . This book was released on 1924 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by United States. Bureau of Chemistry and Soils and published by . This book was released on 1932 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by Chemistry and Soils Bureau and published by . This book was released on with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Engineering written by James R. Mihelcic and published by John Wiley & Sons. This book was released on 2014-01-13 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Engineering: Fundamentals, Sustainability, Design presents civil engineers with an introduction to chemistry and biology, through a mass and energy balance approach. ABET required topics of emerging importance, such as sustainable and global engineering are also covered. Problems, similar to those on the FE and PE exams, are integrated at the end of each chapter. Aligned with the National Academy of Engineering’s focus on managing carbon and nitrogen, the 2nd edition now includes a section on advanced technologies to more effectively reclaim nitrogen and phosphorous. Additionally, readers have immediate access to web modules, which address a specific topic, such as water and wastewater treatment. These modules include media rich content such as animations, audio, video and interactive problem solving, as well as links to explorations. Civil engineers will gain a global perspective, developing into innovative leaders in sustainable development.
Download or read book Report of the Chief of the Bureau of Chemistry and Soils written by United States. Bureau of Chemistry and Soils and published by . This book was released on 1931 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bureau of Chemistry and Soils was created July 1, 1927 for the purpose of correlating all the research work formerly carried on by the Bureau of Chemistry, Bureau of Soils, Fixed Nitrogen Research Laboratory, and the Division of Soil Fertility and Soil Bacteriology of the Bureau of Plan Industry.
Download or read book Inorganic Aspects of Biological and Organic Chemistry written by Robert Hanzlik and published by Elsevier. This book was released on 2012-12-02 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic Aspects of Biological and Organic Chemistry investigates the inorganic aspects of biological and organic chemistry. Topics include the inorganic chemistry of group Ia and IIa metals; complexes of Ia and IIa cations in organic and biological chemistry; atomic structure and structure-activity correlations; and bonding in ligands and metal complexes. Ligand exchange reactions and factors in complex stability are also discussed. Comprised of 12 chapters, this book begins with an overview of some of the important roles of metals in biological and organic chemistry, followed by an analysis of the inorganic chemistry of group Ia and IIa metals. Complexes of Ia and IIa cations in organic and biological chemistry are then described, together with atomic structure and structure-activity correlations. Subsequent chapters deal with bonding in ligands and metal complexes; ligand exchange reactions and factors in complex stability; redox potentials and processes; and the influence of metal ions on equilibria. The book also considers catalysis by metal ions, metal complexes, and metalloenzymes before concluding with a chapter that examines the reactions of ligands in organometallic complexes. This monograph is written for teachers, students, and practitioners of organic, biological, and inorganic chemistry.
Download or read book A Treatise on Dinitrogen Fixation written by Ralph W. F. Hardy and published by . This book was released on 1977 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Companion Encyclopedia of Geography written by Ian Douglas and published by Routledge. This book was released on 2018-10-24 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised edition takes the theme of place as the unifying principle for a full account of the discipline at the beginning of the twenty-first century. The work comprises sixty-four substantial essays addressing human and physical geography, and exploring their inter-relations. The Encyclopedia does full justice to the enormous growth of social and cultural geography in recent years. Leading international academics from ten countries and four continents have contributed, ensuring that differing traditions in geography around the world are represented. In addition to references, the essays also have recommendations for further reading. As with the original work, the new Companion Encyclopedia of Geography provides a state-of-the-art survey of the discipline and is an indispensable addition to the reference shelves of libraries supporting research and teaching in geography.
