Libros de Química, página 2 de 133

Supercritical fluids are neither gas nor liquid, but can be compressed gradually from low to high density and they are therefore interesting and important as tunable solvents and reaction media in the chemical process industry. By adjusting the density the properties of these fluids can be customised and manipulated for a given process - physical or chemical transformation. Separation and processing using supercritical solvents such as CO2 are currently on-line commercially in the food, essential oils and polymer industries. Many agencies and industries are considering the use of supercritical water for waste remediation. Supercritical fluid chromatography represents another, major analytical application. Significant advances have recently been made in materials processing, ranging from particle formation to the creation of porous materials.

Updating their hefty reference approximately every decade since 1958, chemical engineers Poling (U. of Toledo), John M. Prausnitz (U. of California-Berkeley), and John P. O'Connell (U. of Virginia) describe and critically review various estimation procedures for a limited number of properties of gases and liquids. Among those properties are critical and other pure component properties; pressure-volume- temperature relationships and thermodynamic properties of pure components and mixtures; vapor pressures and phase-change enthalpies; standard enthalpies of formation; standard Gibbs energy of formation; heat capacity; surface tension; viscosity; thermal conductivity; diffusion coefficients; and phase equilibria. They compare most of the estimated properties to experimental findings to indicate reliability, and illustrate most methods with examples.

Nanoparticles Synthesis by Soil Microbes Application in Plant Production and the Environment a volume in the Plant and Soil Microbiome series presents an advanced and recent description of plant and soil microbiome in the nanoparticle synthesis and their application in sustainable agriculture and environment In The book covers the broad aspect of microbial synthesized nanoparticles in their synthesis and application in sustainable agriculture and environmental management in line with the recent and timely further interest in the biogenic synthesis of nanoparticles due to their environmentally friendly cost effective rapid and efficient nature The microbial cell contains various bioactive compounds and in the last few years nanoparticle syntheses from the microbial cell have been increasingly sought due to their overall cost effectiveness and less toxic residual products Microbe assisted synthesis of nanoparticles could provide a green environmentally benign rapid and efficient route for the fabrication of biocompatible nanostructures with diverse physical chemical and optoelectronic properties

The latest edition of a classic textbook in electrochemistry The third edition of Electrochemical Methods has been extensively revised to reflect the evolution of electrochemistry over the past two decades, highlighting significant developments in the understanding of electrochemical phenomena and emerging experimental tools, while extending the book''s value as a general introduction to electrochemical methods. This authoritative resource for new students and practitioners provides must-have information crucial to a successful career in research. The authors focus on methods that are extensively practiced and on phenomenological questions of current concern. This latest edition of Electrochemical Methods contains numerous problems and chemical examples, with illustrations that serve to illuminate the concepts contained within in a way that will assist both student and mid-career practitioner.

Extraction processes are essential steps in numerous industrial applications from perfume over pharmaceutical to fine chemical industry Nowadays there are three key aspects in industrial extraction processes economy and quality as well as environmental considerations

Proudly serving the scientific community for over a century, this 95th edition of the CRC Handbook of Chemistry and Physics is an update of a classic reference, mirroring the growth and direction of science. This venerable work continues to be the most accessed and respected scientific reference in the world. An authoritative resource consisting of tables of data and current international recommendations on nomenclature, symbols, and units, its usefulness spans not only the physical sciences but also related areas of biology, geology, and environmental science.The 95th Edition of the Handbook includes 22 new tables and major updates and expansions. A new series highlighting the achievements of some of the major historical figures in chemistry and physics was initiated with the 94th edition. This series is continued with this edition, which is focused on Galileo Galilei, James Clerk Maxwell, Marie Sklodowska Curie, and Linus Carl Pauling. This series, which provides biographical information, a list of major achievements, and notable quotations attributed to each of the renowned chemists and physicists, will be continued in succeeding editions. Each edition will feature two chemists and two physicists.Available in traditional print format, as an eBook, and online, this reference puts physical property data and mathematical formulas used in labs and classrooms every day within easy reach.