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Topic: Category:Chemistry

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lunarchem.html NO.: 0830709 AUTHORS: LAUL,J.C. LANGUAGE: EN (English) LOCATION: BOOKS (QB 591 A7A 1983) CATEGORY: 21 (Meteorites) KEYWORDS: METEORITES; ANTARCTIC METEORITES; ALLAN HILLS METEORITES; ALHA81005; CHEMISTRY; ORIGIN; SOURCE; SAMPLES, METEORITE; SAMPLES, LUNAR; DATA; COMPARISONS; MATRIX; CLASTS; INAA; NEUTRON ACTIVATION ANALYSIS NO.: 0831102 AUTHOR: MARVIN,U.B. LANGUAGE: EN (English) LOCATION: J CATEGORY: 21 (Meteorites) KEYWORDS: METEORITES; ANTARCTIC METEORITES; ALLAN HILLS METEORITES; ALHA81005; MOON; ORIGIN; DESCRIPTION; PHYSICAL PROPERTIES; CHARACTERISTICS; SOURCE; MINERALOGY; CHEMISTRY; COMPARISONS; SAMPLES, METEORITE; SAMPLES, LUNAR; SOILS; BRECCIAS; PETROLOGY; CLASTS; LITHOLOGY NO.: 0840913 AUTHOR: BEATTY,J.K. LANGUAGE: EN (English) LOCATION: J CATEGORY: 21 (Meteorites) KEYWORDS: METEORITES; ORIGIN; MOON; CLASSIFICATION; PHOTOGRAPHS; YAMATO 791197; ANTARCTIC METEORITES; ALLAN HILLS METEORITES; YAMATO METEORITES; ALHA81005; SOURCE; SAMPLES, METEORITE; POPULAR; DESCRIPTION; COMPARISONS; TEXTURE; CHEMISTRY; COMPOSITION; ISOTOPES; EJECTA; DYNAMICS; IMPACTS; ESCAPE; ACCELERATION; VELOCITY; SAMPLES, LUNAR www.ari.net /moon/lunarchem.html

Part 3 Section 3: Food Chemistry Testing Program Product standards of identity, the meat and poultry regulations, and labeling policies are used in determining if a specific product should be subjected to food chemistry sampling. The foreign establishment that produced the product is placed on Intensified for the specific TOI that was violative until 15 consecutive lots of product from the same process category from that establishment are sampled and reported as "Acceptable". The foreign establishment that produced the product will continue on Intensified for the specific TOI that was violative until 15 consecutive lots of product from the same process category from that establishment are sampled and reported as "Acceptable". www.fsis.usda.gov /oppde/op/iim/P3S3.htm   (1565 words)

The Nobel Prize Internet Archive You can click on any Nobel category icon below (literature, physics, chemistry, peace, economics, or physiology and medicine) to see an annotated, hyperlinked list of all Nobel laureates in that category. Recipients in physics and chemistry are named by the Royal Swedish Academy of Sciences; those in economics by the Central Bank of Sweden; those in physiology and medicine by the Karolinska Institute; those in literature by the Swedish Academy; and those who contribute to peace by the Norwegian Nobel Committee appointed by Norway's Parliament. The Nobel Prize Internet Archive is not affiliated with The Nobel Foundation. www.almaz.com /nobel   (236 words)

Background and Significance One of the youngest and most vigorous new hybrid areas is the field of organometallic chemistry, which is often classified as a sub-category of inorganic chemistry. Defined as the chemistry of compounds that contain a metal atom bonded to a carbon atom, organometallic chemistry was born of the fusion of classical inorganic and organic chemistries. Today, research in organometallic chemistry is as vibrant as ever, propagated by the need to discover and describe new compounds, and by the search for new and improved technologies. www.ship.edu /~cfest/Muhoro.html   (2779 words)

Category:Analytical chemistry - Wikipedia, the free encyclopedia The main article for this category is Analytical chemistry. Analytical chemistry is the analysis of material samples to gain an understanding of their chemical composition and structure. en.wikipedia.org /wiki/Category:Analytical_chemistry   (73 words)

Fu-17 The fullerenes in this category are all substituted achiral parent fullerenes in which the chirality is neither inherent to the parent fullerene nor due to an inherently chiral substitution pattern, but is caused by the geometric arrangement of the substituents, all of which cannot be identical. In considering fullerenes with noninherently chiral substitution patterns, their names must be based on nomenclature principles, such as alphabetical order and lowest locants, but their stereodescriptors are based on purely structural considerations for which the CIP method is clearly the method of choice. A single descriptor is sufficient to specify the configuration of a chiral fullerene or of a chiral fullerene substitution pattern, regardless of the degree of its substitution or skeletal replacement. www.chem.qmul.ac.uk /iupac/fullerene/Fu17.html   (73 words)

A Comparison Of Scale Potential Indices With Treatment Results In Ozonated Cooling Systems, CORROSION/94 These are sometimes described as "stabilization chemistry" and "precipitation chemistry." Stabilization chemistry refers to the use of specific chemicals to "stabilize" supersaturated solutions of calcium carbonate, with saturation ratios typical of the Category 2 systems in this paper. Differences in the Theoretical to Actual chemistry were compared to the cleanliness of the cooling systems with respect to heat transfer surface scale, scale formation in valves and non heat transfer surfaces, and precipitate buildup in the tower fill and basin. This study evaluated the water chemistry of ozonated cooling systems using an ion association model to predict the scale potential for calcium carbonate, magnesium hydroxide, amorphous silica, and calcium sulfate. www.frenchcreeksoftware.com /nace94.htm   (73 words)

BBC - 16+ SOS Teacher - Chemistry Inorganic Chemistry Precipitation reactions The category of this answer is AS/A2; Chemistry; Inorganic chemistry; The periodic table. Silver chloride, the precipitate, is formed because it is insoluble in water. A precipitation reaction occurs when two solutions are added together and an insoluble solid is formed as one of the products. www.bbc.co.uk /schools/16/sosteacher/chemistry/49461.shtml   (199 words)

C&EN: COVER STORY - GREEN CHALLENGE Eric J. Beckman, a chemical engineering professor at the University of Pittsburgh, was selected as the Green Chemistry Award winner in the academic category for his group's design and preparation of the first nonfluorinated copolymer "CO -philes," additives that make carbon dioxide a more useful solvent. The Presidential Green Chemistry Challenge Awards were established in 1995 as a competitive effort to promote chemical products and manufacturing processes that prevent pollution yet are economically viable. It is named in honor of Hancock, an early proponent of green chemistry who died unexpectedly in 1993 during his tenure as director of the Chemistry Division of the National Science Foundation. pubs.acs.org /cen/coverstory/8026/8026greenchemistry.html   (3504 words)

Coolant Filtration - Products and Compatibility From a product compatibility standpoint, filter manufacturers that offer coolant products and SCA's in their product lines have gone to great lengths to make their products totally compatible with others that are in the same category type. The chemistry is commonly known as DCA four. This chemistry can be referred to as "need" or "slow release" type. www.filtercouncil.org /techdata/tsbs/02-1.html   (679 words)

C&EN: COVER STORY - GREEN REWARDS Richard A. Gross, a chemistry professor at Polytechnic University, Brooklyn, N.Y., was selected as the Green Chemistry Award winner in the academic category for his group's research on a broad range of lipase-catalyzed polyester syntheses. The Green Chemistry Awards highlight the innovations that are "possible and profitable when science tackles environmental issues," she said. The ceremony took place on the eve of the seventh annual Green Chemistry and Engineering Conference, a three-day meeting that features talks by the award winners and technical sessions on advances in green chemistry and green engineering research and education. pubs.acs.org /cen/coverstory/8126/8126greenchemistry.html   (679 words)

The van der Donk Group > Research > Radical Chemistry in Enzymes Enzymes that fall into this category include many proteins that are targets of clinically used drugs such as ribonucleotide reductase, and prostaglandin H synthase (PGHS). Richard Kulmacz to identify substrate radical intermediates that are formed during the conversion of arachidonic acid into PGH2. The histidine is also a ligand to the copper whereas the tyrosine is thought to be oxidized to a tyrosyl radical during catalysis. vanderdonk.scs.uiuc.edu /research/research_1.html   (405 words)

Open Directory - Science:Chemistry:Inorganic This category is not intended for ALL inorganic compounds, but only ones of important-industrial use, -technical study, -structural information, or physical properties. Notable professionals in the field of Inorganic Chemistry. Combinations of inorganic atoms, many of which have unusual physical properties and structure. dmoz.org /Science/Chemistry/Inorganic/desc.html   (168 words)

BBC - GCSE Bitesize - SOS Teacher Chemistry structure of materials Dissociation... The category of this answer is: Key Stage 4; Chemistry; Structure of materials; Separation techniques. the acid has only partially dissociated into ions or, to put it another way, the acid is only partially ionised. When the teacher went through the answers she said it should have been "partially ionised", but I'm confused. www.bbc.co.uk /schools/gcsebitesize/sosteacher/chemistry/47547.shtml   (183 words)

Category:Computational chemistry - Wikipedia, the free encyclopedia The main article for this category is Computational chemistry. There are 4 subcategories shown below (more may be shown on subsequent pages). en.wikipedia.org /wiki/Category:Computational_chemistry   (68 words)

BBC - GCSE Bitesize - SOS Teacher Chemistry structure of materials Atomic Absorption The category of this answer is GCSE; Chemistry; Structure of materials; Bonding and compounds The information supplied by an absorption spectrum is very useful – each different element, and even the same element when bonded with other different elements, has a distinctive absorption spectrum, like a fingerprint. The gaps that appear in the spectrum are called absorption lines, and the full set of these from the entire light spectrum is called an absorption spectrum. www.bbc.co.uk /schools/gcsebitesize/sosteacher/chemistry/47392.shtml   (68 words)

Surface Chemistry The surface data category highlights databases that allow surface scientists, tribologists, and analytical chemists to analyze surfaces of materials. Journal, Elsevier (NL) [E] allows the construction, visualization, and interactive analysis of general crystal lattices including single crystal surfaces (LATTICE sessions) and of finite clusters and molecules (CLUSTER sessions). Journal, Elsevier (NL) [E] Surface and Interface Analysis www.chemlin.de /chemistry/surface_chemistry.htm   (210 words)

Graph theory - Wikipedia, the free encyclopedia An important application of graph theory can be found in mathematical chemistry where molecules are modelled by graphs. In 1852 Francis Guthrie posed the four color problem which asks if it is possible to color, using only four colors, any map of countries in such a way as to prevent two bordering countries from having the same color. Firstly, analysis to determine structural properties of a network, such as whether or not it is a scale-free network, or a small-world network. en.wikipedia.org /wiki/Graph_theory   (210 words)

Science.gov topic Chemistry and Chemicals for user category All categories Chemical Sciences at LBL (CSD) - Researches chemical processes, including catalysis, actinide chemistry, reaction dynamics, and photoionization, and elucidates their fundamental mechanisms. Chemistry WebBook - Search the chemical and physical property data for chemical species Educational Sites for All Ages - All science subjects, with emphasis on biology, chemistry, and environmental science. science.gov /browse/w_129A.htm   (1660 words)

BBC - GCSE Bitesize - SOS Teacher Chemistry structure of materials bond energy The category of the answer is KS4/ Chemistry/Changing materials/Quantitative Chemistry. This is the exothermic energy for the reaction. If the exothermic energy is the greater the reaction will be exothermic overall and of course the opposite applies if the endothermic energy is the greater. www.bbc.co.uk /schools/gcsebitesize/sosteacher/chemistry/47385.shtml   (1660 words)

EPA/OPPT/High Production Volume Challenge Program (HPV): Robust Summaries & Test Plans: C5 Noncyclics The American Chemistry Council (ACC) has done an excellent job of grouping 11 different industrial streams with 16 separate CAS numbers into a single category recognizing that isoprene and 2-methyl-2- butene are the primary bioactive agents in these mixtures. The American Industrial Hygiene Association recommends that an 8-hr TWA isoprene concentration not exceed 50 ppm.Isoprene is not a persistent environmental chemical; it is expected to have an atmospheric half-life on the order of hours, depending on the atmospheric concentration of hydroxyl radicals. The ACC has developed a costly (both in terms of dollars and animal lives) test plan for C5 compounds that will provide little information to improve our understanding of the toxicity of crude streams. www.epa.gov /chemrtk/c5ncyl/c5pcrcmt.htm   (1660 words)

Laboratory Costs in the Context of Disease -- Young et al. 46 (7): 967 -- Clinical Chemistry DRG was $146 for diseases of the eye (MDC 2). DRGs in MDC 16 (diseases and disorders of the blood and blood-forming MDCs, the average of the median laboratory costs for the medical www.clinchem.org /cgi/pmidlookup?view=full&pmid=10894840   (4036 words)

AllRefer.com - inorganic chemistry (Chemistry) - Encyclopedia inorganic chemistry, the study of all the elements and their compounds with the exception of carbon and its compounds, which fall under the category of organic chemistry. Inorganic chemistry investigates the characteristics of substances that are not organic, such as nonliving matter and minerals found in the earth's crust. Branches of inorganic chemistry include applications in organic chemistry, bioinorganic chemistry, coordination chemistry, geochemistry, inorganic technology, nuclear science and energy, organometallic compounds, reaction kinetics and mechanisms, solid-state chemistry, and synthetic inorganic chemistry. reference.allrefer.com /encyclopedia/I/inorgani.html   (183 words)

Best Book Buys - Solid state chemistry Books Subject Category > Science > Chemistry / Physical & Theoretical > Solid state chemistry Solid State Chemistry: Synthesis, Structure, and Properties of Selected Oxides and Sulfides Quasielastic Neutron Scattering: Principles and Applications in Solid State Chemistry, Biology and Material Science www.bestwebbuys.com /Physical_and_Theoretical_Chemistry-N_10036682-books.html   (193 words)

Category:Nobel Prize in Chemistry winners - Wikipedia, the free encyclopedia Articles in category "Nobel Prize in Chemistry winners" en.wikipedia.org /wiki/Category:Nobel_Prize_in_Chemistry_winners   (54 words)

Nobelprize.org The prize amount in 2005 is 10 million Swedish kronor per category and can be shared, at most, by three persons. is an international award given yearly since 1901 for achievements in physics, chemistry, medicine, literature and for peace. In 1968, the Bank of Sweden instituted the Prize in Economic Sciences in Memory of Alfred Nobel, founder of the Nobel Prize. www.nobel.se /index.html   (154 words)

Lists of articles by category : List of topics lists None of these are yet comprehensive or up-to-date, but filling in or creating these lists will create an easy way to track articles by their categories, as well as creating an implicit to-do list of topics for which articles have not yet been written. List of anomalous phenomenon (paranormal) and parapsychology topics List of health science topics (list is currently being merged into Health science) www.explainthis.info /li/list-of-topics-lists.html   (474 words)

Explore the History of Chemistry - Chemical Heritage Foundation If you are already a fan of chemistry, check out the Resources section in each category for links to more in-depth content. When most people think of chemistry, they think of lab coats, Bunsen burners, and the cryptic periodic table. But chemistry has a fascinating story to tell. www.chemheritage.org /explore/explore.html   (102 words)

GalaxyGoo Math Links Author: Richard :: Date: December 14, 2002 :: Category: Chemistry Author: Richard :: Date: December 14, 2002 :: Category: Astronomy Author: Richard :: Date: December 14, 2002 :: Category: Discrete Mathematics www.galaxygoo.org /blogs/mathLinks   (102 words)

ChemSpy.com - Chemical Searching and Chemistry Databases for the Chemical Industry Only links that are of general interest in a particular field of chemistry are included in our list. Each category contains a link to a more detailed list of resources made by specialists in their field. ChemSpy.com is a convenient portal for professionals, scientists, engineers, and students allowing them to accelerate their chemical searching on the web using a number of useful web services available entirely for free. www.chemspy.com   (102 words)

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