Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Chemical nomenclature


Related Topics

In the News (Sat 30 Aug 08)

  
  Simplified Spelling Society : Chemical language.   (Site not responding. Last check: 2007-10-20)
Chemical nomenclature exemplifies the conditions necessary for a successful language change and illustrates the reluctance for subsequent reforms.
The chemical nomenclature is a predominant literary language.
Wheras th nomenclatur of inorganic chemistry was constructd by 4 chemists, numerus chemists participated in th developmnt of th mor complicated naming systm of organic chemistry.
www.spellingsociety.org /journals/j32/chemical.php   (2903 words)

  
 Frequently Asked Questions, Chemical Waste Topics
Chemical Waste Satellite Accumulation Areas are designated with a CWSAA poster (available online or by contacting EHS) in conjunction with the use of a secondary containment.
Abbreviations, chemical nomenclature, and molecular formulas are not acceptable means for identifying the constituents of the waste container.
Containers from household products are not made to the same chemical resistance standards as those used for chemicals, and may not maintain their integrity when used to contain laboratory reagent chemicals or chemical waste.
www.med.cornell.edu /ehs/faq/chemical_waste.htm   (1452 words)

  
 Nomenclature and Registry Systems for Biopharmaceuticals and Biogenerics
Similarly, there are no nomenclature or registry systems capable of appropriately handling biotechnology or biopharmaceutical products, which as entities exhibit much more complexity than chemical substances and drugs, with this further complicated by their complex and often-changing regulatory and commercial aspects (that combine to define them as products).
Systematic chemical nomenclature (names) is similarly a method for linear notation or representation of chemical structures (with trivial/common or derivative names adopted where this fails).
By their very nature, nomenclature systems tend to collect names varying greatly in their specificity and accuracy, often including names that are simply wrong, but have been used in the literature or other source(s) the registry system is intended to serve.
www.biopharma.com /nomenclature.html   (5883 words)

  
 Nomenclature, genes, proteins & beyond for pharmaceutical research   (Site not responding. Last check: 2007-10-20)
IUPAC Chemical Identifier Project http://www.iupac.org/nomenclature/chem_id_project.html The aim of the Chemical Identifier project is to establish a unique label, the IUPAC Chemical Identifier (IChI), which would be a non- proprietary identifier for chemical substances that could be used in printed and electronic data sources thus enabling easier linking of diverse data and information compilations.
JT Dunnen, SE Antonarakis SE "Mutation nomenclature extensions and suggestions to describe complex mutations: a discussion" Human Mutation 2000; 15 (1): 7- 12 While a codified mutation nomenclature system for simple DNA lesions has now been adopted broadly by the medical genetics community, it is inherently difficult to represent complex mutations in a unified manner.
Nomenclature committees were soon established for both the human and mouse genes and guidelines (White et al., 19972 and Maltais LJ et al., 19973) published in conjunction with the reports from the HGM (Human Genome Mapping) meetings.
www.genomicglossaries.com /content/nomenclature.asp   (1918 words)

  
 Basic chemical nomenclature
Chemical substances have been a part the fabric of civilization and culture for thousands of years, and present-day chemistry retains a lot of this ancient baggage in the form of terms whose hidden cultural and historic connections add color and interest to the subject.
Finally, in 1852, it become a part of chemical nomenclature that denoted a common class of organic compound.
Chemical substances that are employed in the home, the arts, or in industry have acquired traditional or "popular" names that are still in wide use.
www.chem1.com /acad/webtext/intro/nomen.html   (2296 words)

  
 EPA: Federal Register: Correction to Chemical Nomenclature for Monomer Acid and Derivatives for TSCA Inventory Purpose
The August 2, 1985 EPA letter to an industry representative on the nomenclature for monomer acids states: The co-product produced during the catalytic dimerization of tall oil fatty acids and generally known as `monomer acid' or `monomer fatty acid' is considered to be the same as tall oil fatty acids for TSCA Inventory purposes.
TSCA New Chemicals Program Policy for Monomer Acid Chemical Nomenclature Today's nomenclature correction finalizes the Federal Register notice of October 31, 2000 (65 FR 64944), and constitutes official notice that EPA's August 2, 1985, letter was erroneous and that monomer acids are not equivalent to TOFA, oleic acid, or octadecenoic acid for Inventory purposes.
EPA no longer considers as valid the nomenclature interpretation in the August 2, 1985 EPA letter which stated: The co-product produced during the catalytic dimerization of tall oil fatty acids and generally known as `monomer acid' or `monomer fatty acid' is considered to be the same as tall oil fatty acids for TSCA Inventory purposes.
www.epa.gov /EPA-TOX/2001/June/Day-27/t16124.htm   (4054 words)

  
 Chemical Nomenclature
Before a systematic method of naming different chemical substances was established, various compounds were named after people, places, or things.
Chemical nomenclature is the systematic naming of chemical compounds.
So far we have seen that in the name of a chemical compound, the first element usually is positive, and is the first part of the name.
library.thinkquest.org /10429/low/nomen/nomen.htm   (1315 words)

  
 An Open Standard for Chemical Structure Representation - The IUPAC Chemical Identifier
The aim of the IUPAC Chemical Identifier Project (IChIP) is to establish a unique label, the IUPAC Chemical Identifier (IChI), which would be a non-proprietary identifier for chemical substances that could be used in printed and electronic data sources thus enabling easier linking of diverse data compilations and unambiguous identification of chemical substances.
The CCINS is responsible for developing systems for conventional and computer-based chemical nomenclature; cooperating with the four current IUPAC nomenclature Commissions; coordinating interdisciplinary activities in the nomenclature field; and recommending to the Bureau long-range strategy on chemical nomenclature.
A "chemical identifier" is intended to be a meaningful alphanumeric text string that can uniquely identify a chemical compound and facilitate its handling in computer databases.
www.hellers.com /steve/resume/p157.html   (1977 words)

  
 Chemical Nomenclature   (Site not responding. Last check: 2007-10-20)
Chemical Nomenclature is the science of determining names and formulas of chemical substances.
The identity of each atom (that is, which chemical element it belongs to) is determined by the number of protons in the atom's nucleus.
Since the chemical symbol of mercury (Hg) is taken from the Latin name hydragyrum, you might expect its two ions to be named hydragyrous ion and hydragyric ion.
www.accd.edu /pac/chemistr/lectures/nomen01.htm   (11320 words)

  
 Chemical Nomenclature Translation
Systematic nomenclature is one of the oldest forms of line notation.
Any software that can convert systematic nomenclature, such as IUPAC names, into a computer-based representational system, such as a connection table, has the potential to unlock vast amounts of legacy chemical information by making it structure-searchable.
Nomenclature translation has been more widely investigated than the related problem of 2-D raster image interpretation, although the driving forces in both cases are the same.
depth-first.com /articles/2006/09/10/chemical-nomenclature-translation   (415 words)

  
 Chemical Sciences: Stoichiometry: Principles of Chemical Nomenclature   (Site not responding. Last check: 2007-10-20)
Chemical nomenclature simply means the naming of chemical compounds.
Chemical elements, which are the simplest forms into which materials can be resolved by chemical means, react with each other to yield chemical compounds containing various proportions of two or more elements.
Because organic chemistry is the study of carbon-hydrogen compounds, organic compounds are named by giving the chain or other structure of the carbon-hydrogen atoms and substituting into that structure the names of any other elements or groups of elements and the particular places at which they are present.
www.ualberta.ca /~jplambec/che/p101/p01025.htm   (519 words)

  
 International Union of Pure and Applied Chemistry nomenclature - Wikipedia, the free encyclopedia
IUPAC nomenclature is a system of naming chemical compounds and of describing the science of chemistry in general.
The primary function of chemical nomenclature is to ensure that the person who hears or reads a chemical name is under no ambiguity as to which chemical compound it refers: each name should refer to a single substance.
While both explanations are probably valid to some extent, it is remarkable that the first "modern" system of chemical nomenclature appeared at the same time as the distinction (by Lavoisier) between elements and compounds, in the late eighteenth century.
en.wikipedia.org /wiki/IUPAC_nomenclature   (1141 words)

  
 Chemical nomenclature (via CobWeb/3.1 planetlab2.cs.unc.edu)   (Site not responding. Last check: 2007-10-20)
There are two systems of Chemical nomenclature: organic and inorganic.
Organic compounds are named according to the organic nomenclature system.
Inorganic compounds are named according to the inorganic nomenclature system.
chemical-nomenclature.iqnaut.net.cob-web.org:8888   (58 words)

  
 Stoichiometry
A chemical equation is an expression of a chemical process.
Often chemical equations are written showing the state that each substance is in.
Coefficients are used in all chemical equations to show the relative amounts of each substance present.
www.shodor.org /unchem/basic/stoic   (2519 words)

  
 The First Chemical Revolution
The first chemical revolution was spurred by the work of Lavoisier and Berzelius, who transformed the archaic language of chemists into a system understandable by people with little formal education.
The first chemical revolution took place when the ancient and obscure art of chemistry was revealed to the masses by the efforts of Lavoisier and Berzelius.
This system of nomenclature and the formulae describing its use were first introduced in Annals of Philosophy in 1814, and were adopted in textbooks beginning in 1832.
www.wooster.edu /chemistry/is/brubaker/intro.html   (749 words)

  
 ChemNomenclature.htm
Writhe the chemical formula with the subscripts written, be sure not to include the charge of the elements in the formula
Does the chemical formula show the simplest ratio, if not reduce it to the simplest ratio.
The chemical name tells you the oxidation state of the metal.
www.miramar.sdccd.cc.ca.us /faculty/fgarces/ChemComon/Tutorial/ChemNomen/ChemNomenclature.htm   (1214 words)

  
 EPA: Federal Register: Proposed Correction to Chemical Nomenclature for Monomer Acid and Derivatives for TSCA Inventory ...
Proposed TSCA New Chemicals Program Policy for Monomer Acid Chemical Nomenclature Today's proposed nomenclature correction constitutes official notice that EPA's August 2, 1985 letter was erroneous and that monomer acids are not equivalent to TOFA, oleic acid, or octadecenoic acid for Inventory purposes.
The proposed nomenclature correction affects anyone who manufactures or imports, or who plans to manufacture or import, a monomer acid derivative or other ``downstream'' substance based on monomer acid for a non-exempt commercial purpose.
For the purposes of this proposed nomenclature correction only, EPA is suspending its TSCA new chemicals program policy of a limit of six chemical substances per consolidation notice and waiving PMN fees for any PMN submissions required as a result of the proposed nomenclature correction.
www.epa.gov /fedrgstr/EPA-TOX/2000/October/Day-31/t27927.htm   (3926 words)

  
 Valid Analytical Measurement - Chemical Nomenclature
The proliferation of new chemicals has given rise to a number of systems for naming them.
The lack of a unified system of nomenclature has caused confusion in many areas, for example in purchase of chemicals, or in interpreting legislation.
Chemical Nomenclature Advisory Service (CNAS) specialises in the use of a logical and unambiguous form of nomenclature, based on the recommendations of the International Union of Pure and Applied Chemistry (IUPAC).
www.vam.org.uk /advice/advice_services_chemical.asp   (135 words)

  
 Nomenclature of Compounds   (Site not responding. Last check: 2007-10-20)
For that reason, the rules and drills presented here are broken down into Units, and it is not advisable to study all the units at one sitting, but to take it one unit at a time.
An ionic compound is generally made of one type of cation combined with one type of anion.
In the case of potassium acetate, since potassium is in Group IA, it must have a charge of 1+, and acetate has a charge of 1-, the formula is simply KC No parenthesis is necessary.
www.towson.edu /~yau/NomenclatureTutorial.htm   (3025 words)

  
 Chemistry > Background Information - UA Library   (Site not responding. Last check: 2007-10-20)
See Regulated Chemicals or Commercial Sources for an example of how to search this database for locating chemical suppliers.
Inorganic Syntheses began publication in 1933 and serves “to provide all users of inorganic substances with detailed and foolproof procedures for the preparation of timely compounds.” All procedures are critically evaluated by an independent laboratory prior to publication.
Recommended temperature-dependent values are provided for chemical thermodynamic properties of inorganic substances and for organic substances containing only one or two carbon atoms.
www.library.arizona.edu /search/subjects/chemistry   (2125 words)

  
 CHF - CHRONOLOGY OF CHEM INFO SCIENCE - NOMENCLATURE, SYMBOLS, DIAGRAMS
Méthode de Nomenclature Chimique, by Louis Bernard Guyton de Morveau, Antoine Laurent Lavoisier, Claude Louis Berthollet, and Antoine François de Fourcroy, is published in Paris.
Congress is held at Karlsruhe Technische Hochschule to discuss the feasibility of establishing a systematic and rational nomenclature for chemistry.
IUPAC approves rules for chemical nomenclature that are subsequently issued in book form--the famous Red, Blue, and Green Books, dealing with inorganic, organic, and physical chemistry, respectively.
www.chemheritage.org /explore/timeline/NOMEN.HTM   (718 words)

  
 Nomenclature   (Site not responding. Last check: 2007-10-20)
Unfortunately, for historical reasons, there is not one system of nomenclature for all compounds.
There is an older system of nomenclature still used that indicates a polyatomic ion with one hydrogen attached by appending the prefix "bi".
Organic nomenclature is beyond the scope of this course.
home.att.net /~v.d.singleton/genchem/nomen.htm   (2166 words)

  
 (IUCr) Commission on Crystallographic Nomenclature
Nomenclature problems arising in specific fields of crystallography that come to the attention of, and are recognised as important by, the Commission are studied by ad hoc committees of experts appointed by the Commission.
Nomenclature of magnetic, incommensurate, composition-changed morphotropic, polytype, transient-structural and quasicrystalline phases undergoing phase transitions.
IUPAC Analytical Chemistry Division: Nomenclature for Non-Linear Chromatography
www.iucr.org /iucr-top/comm/cnom/index.html   (421 words)

  
 JCE 2000 (77) 144 [Feb] How to Make Learning Chemical Nomenclature Fun, Exciting, and Palatable
One great challenge that introductory chemistry students have is learning the names of various chemical compounds.
When this topic is first introduced, and problems and questions are assigned at the end of the chapter, one may hear students moaning and groaning.
So to make chemical nomenclature fun, exciting, and palatable, the "Rainbow Wheel" was developed at North Iowa Area Community College.
jchemed.chem.wisc.edu /Journal/Issues/2000/feb/abs144.html   (212 words)

  
 Organic Chemical Nomenclature
Nomenclature or organic chemistry, section H: isotopically modified compounds.
Extension of rules A-1.1 and A-2.5 concerning numerical terms used in organic chemical nomenclature.
Extension and Revision of the Nomenclature for Spiro Compounds.
www.chem.qmul.ac.uk /iupac/bibliog/cnoc.html   (864 words)

  
 Chapter 6: Nomenclature   (Site not responding. Last check: 2007-10-20)
Chemical Nomenclature - Outline to help you decide how to name a chemical compound (Chemistry 145, Scott Van Bramer, Widener University).
Chemical Nomenclature Problem Set - Problems for writing formulas, naming compounds, determining protrons, neutrons and electrons in an isotope; includes a link to answers (Chemistry 145, Scott Van Bramer, Department of Chemistry, Widener University).
Nomenclature Table of Contents - Links to list of common ions, flow chart, instructions for naming various types of compounds (binary, polyatomic,acid), 7 nomenclature worksheets with 50 questions each and a link to answers.
www.woodrow.org /teachers/chemistry/links/chem1/Chapter6.html   (136 words)

  
 Chemical Nomenclature Aids in the IUB Chemistry Library
Chemical Nomenclature, Symbols and Terminology for use in School Science: a report.
Nomenclature of Organic Chemistry: Sections A,B,C,D,E,F and H. Elmsford, Riguady, J. and S.P. Klesney.
A guide to IUPAC nomenclature of organic compounds: recommendations 1993 / International Union of Pure and Applied Chemistry, Organic Chemistry Division, Commission on Nomenclature of Organic Chemistry (III.1); prepared for publication by R. Panico and W.H. Powell; Jean-Claude Richer, senior editor.
www.indiana.edu /~cheminfo/14-01.html   (480 words)

  
 Chemical Nomenclature   (Site not responding. Last check: 2007-10-20)
Naming chemical compounds can be a challenging job when you recognize that there are literally millions of compounds that are known with thousands more being added every year.
It is important that you become proficient with nomenclature as it is the fundamental vocabulary of chemistry.
The major difference between ionic and covalent compounds for the purposes of nomenclature is that there is only one way for two ions to be combined into a neutral ionic compound, while there may be many possible combinations of the same elements that give covalent compounds.
neon.chem.uidaho.edu /~honors/nomen.html   (2510 words)

  
 Chemicals & Petrochemicals: Chemical Nomenclature (via CobWeb/3.1 planetlab2.cs.unc.edu)   (Site not responding. Last check: 2007-10-20)
The failure to apply a unified system of nomenclature causes problems for world trade, difficulties in interpreting legislation, confusion in purchasing from different suppliers, misunderstandings amongst researchers and educationalists and problems with literature and internet searches.
LGC promotes the use of a logical and unambiguous system of chemical nomenclature, based on the recommendations of the International Union of Pure and Applied Chemistry (IUPAC).
Guidance on correct chemical nomenclature to be used in official documents, e.g.
www.lgc.co.uk.cob-web.org:8888 /service.asp?intElement=3771   (303 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.