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Topic: Organic compound


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In the News (Sat 16 Dec 17)

  
  FAQ
Organic compounds, depending on their properties, are able to partition between the two liquid phases and into the gas phase.
First, if the organic compounds that you want are in the public library (these are the ones that are always present in the drop-down box on the Available Compounds page) then first follow the instructions given in answer to question 2 in the section above.
The volatility of the compound expressed as a vapour pressure or Henry's law constant, its solubility in water with respect to the solid compound or hydrate, dissociation constants (if the compound is an acid), and how its activity coefficients in the liquid phase(s) are calculated.
www.aim.env.uea.ac.uk /aim/info/faq.html   (1709 words)

  
  Organic compound - Wikipedia, the free encyclopedia
An organic compound is any member of a large class of chemical compounds whose molecules contain carbon, with the exception of carbides, carbonates, carbon oxides and elementary carbon.
The study of organic compounds is termed organic chemistry, and what with it being such a vast collection of chemicals (over half of all known chemical compounds), systems have been devised to classify organic compounds.
The theory that organic compounds were fundamentally different than those that were "inorganic", that is, not synthesized through a life-force, was disproven with the synthesis of urea, an organic compound, from potassium cyanate and ammonium sulfate by Friedrich Wöhler.
en.wikipedia.org /wiki/Organic_compound   (277 words)

  
 Organometallic compound - Wikipedia, the free encyclopedia
An organometallic compound is partially characterized by the presence of one or more metal-carbon bonds, in which the carbon involved would, apart from the metal-carbon bond, be otherwise considered a part of an organic compound.
Some organometallic compounds derived from electropositive elements, such as Grignard reagents and organolithiums, have a high electron density on the carbon.
In certain organometallic compounds such as ferrocene or dibenzenechromium, the pi-orbitals of the organic moiety ligate the metal.
en.wikipedia.org /wiki/Organometallic_compound   (139 words)

  
 Learn more about Organic compound in the online encyclopedia.   (Site not responding. Last check: )
An organic compound is any of a large class of chemical compounds whose molecules contain carbon, with exception of carbides, carbonates and carbon oxides.
Organic compounds are studied in organic chemistry; many of them, such as proteins, fats and carbohydrates, are also of prime importance in biochemistry.
The dividing line between organic and inorganic is somewhat controversial and historically arbitrary, but generally speaking, organic compounds have carbon-hydrogen bonds, and inorganic compounds do not.
www.onlineencyclopedia.org /o/or/organic_compound.html   (256 words)

  
 Organic chemistry - encyclopedia article - Citizendium
Compounds that are related to life processes are dealt with in the branch of chemistry which is called biochemistry.
Organic chemistry received a boost when it was realized that these compounds could be treated in ways similar to inorganic compounds and could be manufactured by means other than 'vital force'.
Because many organic compounds have relatively low boiling points and/or dissolve easily in organic solvents there exist many methods for separating mixtures into pure constituents that are specific to organic chemistry such as distillation, crystallization and chromatography techniques.
en.citizendium.org /wiki/Organic_chemistry   (2699 words)

  
 General Chemistry Online: Glossary: Simple compounds
This represents a compound, and not a mixture, because there is a definite 1:7 ratio of zinc sulfate to water in the compound.
NaCl is a binary compound; NaClO is not.
Organic compounds were once thought to be produced only by living things.
antoine.frostburg.edu /chem/senese/101/compounds/glossary.shtml   (1360 words)

  
 Organic Chemistry Primer
In fact, a compound may be synthesized in a laboratory, be of a type that never, in the history of the earth, has been found associated with an organism, and still be called an organic compound.
The common, lay usage of the word organic, though perhaps historically reasonable, is no longer scientifically valid and therefore not useful to your understanding of the concept organic compound, nor to one’s understanding of organic chemistry in general.
(a) Hydrocarbons are the simplest of organic compounds.
www.mansfield.ohio-state.edu /~sabedon/biol4015.htm   (3110 words)

  
 General Chemistry Online: Glossary: Introduction to organic chemistry
An alcohol is an organic compound with a carbon bound to a hydroxyl
An aldehyde is an organic compound with a carbon bound to a -(C=O)-H group.
Compounds containing the azo compounds are often intensely colored and are economically important as dyes.
antoine.frostburg.edu /chem/senese/101/organic/glossary.shtml   (1975 words)

  
 [No title]   (Site not responding. Last check: )
As examples, devices such as an organic EL (electroluminescence) that injects electrons and holes respectiveiy and simultaneously from two electrodes and emits light, devices such as transistor that transports a carrier from a source to a drain by voltage applied to a gate to perform a function of switching, etc. can be mentioned.
Particularly, the compound of the Chemical Formula 1 is suitable for a p-type organic thin film transistor, since the organic thin film transistor must form a stable interface with a fate insulator and rapidly transport holes from a source to a drain.
The organic light-emitting device as defined in Claim 1, wherein the thickness of the layer comprising the organic compound represented by Chemical Formula 1 is 10-10, 000 nm.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/49806.010712&ELEMENT_SET=DECL   (3966 words)

  
 [No title]   (Site not responding. Last check: )
Metallic compound or compound metal in the present context means any carbide, nitride, or boride of the early transition metals, lanthanides, and alkaline earths (group IIA), any mixture of these metallic compounds, or mixed carbides, nitrides and borides.
An organic electroluminescent device comprising a substrate, an anode, a cathode, and an organic stack being sandwiched between the anode and cathode, characterized in that the cathode comprises a metallic compound, wherein the metallic compound is a carbide, nitride, or boride of an early transition metal, lanthanide or alkaline earth.
The organic electroluminescent device of claim 1 in the case when the metallic compound is a carbide, nitride, or boride of an early transition metal, wherein the early transition metal is an element of group IIIB, IVB, VB, or VIB of the periodic table of elements.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/31741.990624&ELEMENT_SET=DECL   (4686 words)

  
 Organic Gases (Volatile Organic Compounds - VOCs) | An Introduction to Indoor Air Quality | Indoor Air | Air | US EPA
Organic Gases (Volatile Organic Compounds - VOCs)
The ability of organic chemicals to cause health effects varies greatly from those that are highly toxic, to those with no known health effect.
Many organic compounds are known to cause cancer in animals; some are suspected of causing, or are known to cause, cancer in humans.
www.epa.gov /iaq/voc.html   (1366 words)

  
 Representing Organic Compounds: Structural Formulas.
Because of the complexity of the structure of many organic compounds, as well as the importance of structure in organic chemistry, the development of shorthand methods for representing the structures of organic compounds has been almost mandatory in order to allow the drawing of structures in a reasonable amount of space and time.
It is still, however, possible to simplify the representation of an organic compound even further without compromising its ability to convey useful information about the structure and bonding of the compound.
Practically all of the chemistry of organic compounds occurs at functional groups because the electrons in the carbon-carbon and carbon-hydrogen single bonds of the carbon skeleton are seldom directly involved in reactions - they are tightly held between the two nuclei, and they are seldom accessible to external reagents or respond to their influences.
www.uwec.edu /lewisd/321reps.htm   (1233 words)

  
 PSL 5: Theoretical Background   (Site not responding. Last check: )
Usually an organic compound is preferentially soluble in an organic solvent, whereas a salt is preferentially water-soluble.
The organic solvents used in liquid-liquid extraction are usually immiscible with water and have a low boiling point (e.g., dichloromethane, ether, ethyl acetate).
The organic solution containing the neutral compound is washed with water, dried, and the organic solvent removed.
www.chem.ualberta.ca /~orglabs/x61web/frames/psl5/fr_psl5_insight.html   (625 words)

  
 Volatile organic compound: Facts and details from Encyclopedia Topic   (Site not responding. Last check: )
Soil is the layer of minerals and organic matter, in thickness from centimetres to a metre or more, on the land surface....
Not all organic compounds are volatile; many plastics (polymers) and other large molecules may not have significant vapor pressure at normal temperatures.
An organic compound refers to any member of a large class of chemical compounds whose molecules contain carbon, with exception of carbides, carbonates...
www.absoluteastronomy.com /encyclopedia/v/vo/volatile_organic_compound.htm   (1789 words)

  
 DRDB: EDAQMD 216 ORGANIC COMPOUNDS
Total carbon for an individual organic compound shall be calculated as that portion of the mass of said compound which is attributable to its carbon atoms, as determined from the molecular structure of said compound.
For any machinery process or operation in which organic compounds are heated, baked, heat cured, heat polymerized, or exposed to flame, emissions of organic compounds shall not exceed 15 pounds per day or 3 pounds in any one hour, unless said emissions are reduced by at least 85 percent.
Any single use or operation which annually consumes a total volume of organic compounds which is less than the total emissions permitted by this rule, unless said use or operation is part of a larger process or operation which would otherwise be subject to these Rules and Regulations.
www.arb.ca.gov /DRDB/ED/CURHTML/R216.HTM   (703 words)

  
 Organic compound news
An organic compound is any member of a large class of chemical compounds whose molecules contain carbon and hydrogen; therefore, carbides, carbonates, carbon oxides and elementary carbon are not organic (see below for more on the definition controversy for this word).
The study of organic compounds is termed organic chemistry, and since it is a vast collection of chemicals (over half of all known chemical compounds), systems have been devised to classify organic compounds.
It's an organic compound found in antifreeze which is toxic to humans and animals.
www.mongabay.com /reference/eco/Organic_compound.html   (1831 words)

  
 The Manufacturing and Application of Organic Compound Fertilizers
It is intended to develop organic compound fertilizers for different crops from different formulations, based on crop nutrient requirements.
During the second year (1995-96), the organic compound fertilizer at a level of 60kg N/ha was found to give a higher net profit for autumn tobacco in Taichung.
Organic compound fertilizer may combine the best qualities of compost and chemical fertilizer, in a way which is cost effective and minimizes environmental pollution.
www.agnet.org /library/eb/431   (2455 words)

  
 Speciation of volatile organic compound emissions for regional air quality modeling of particulate matter and ozone
A simple postprocessing model was used to analyze the speciated organic emissions in terms of both gas-phase reactivity and potential to form organic PM.
Organic radical production associated with anthropogenic organic compound emissions may be 1 or more orders of magnitude more important than biogenic-associated production in northern United States and Canadian cities, and a factor of 3 more important in southern U.S. cities.
The post-processing model used here overestimates the organic particle formation relative to measurements, lacks the complexity of a regional air quality model, and is not intended as an alternative to the latter.
www.agu.org /pubs/crossref/2003/2001JD000797.shtml   (516 words)

  
 chemnorth's Home Page
The properties of organic compounds are determined by the presence of certain groups of atoms within the compound.
Groups of atoms that impart specific properties to an organic compound are called functional groups.
The tetrahedral shape, with the bond angles of 109.5 degrees, is common among organic compounds.
www.geocities.com /chemnorth/organic.htm   (2991 words)

  
 Organic Chemistry
Basic organic chemistry can be thought of as a molecular Erector Set, if you know the number of carbon atoms and the type of bonds in a molecule, you can build the molecular structure.
These compounds are named like the simple hydrocarbons, a prefix attached to a root ending (-anol for the alcohols).
Most people are familiar with this organic compound as it is the active ingredient in "alcoholic" beverages such as beer and wine.
web.jjay.cuny.edu /~acarpi/NSC/10-organic.htm   (934 words)

  
 Method for preparing a difunctional aliphatic organic compound - Patent 6153783
It would be desirable to provide a method for producing a difunctional aliphatic organic compound such as a dicarboxylic acid, e.g., azelaic acid, diester or a derivative thereof which requires a minimum number of steps.
Unlike the other known methods previously described to produce a difunctional aliphatic organic compound, the method described herein advantageously produces a difunctional aliphatic organic compound such as a dicarboxylic acid, a diester or derivatives thereof by a two-step process that employs ultraviolet radiation.
The compound to react with the cycloalkanone will vary according to the desired intermediate reaction product, e.g., a carboxylic acid, an ester, etc., and subsequent difunctional aliphatic organic compound product, e.g., a carboxylic acid, a dicarboxylic acid, an ester, a diester, etc., which is described hereinbelow.
www.freepatentsonline.com /6153783.html   (3396 words)

  
 Organic compound Summary and Analysis Summary
Organic materials are composed of a mixture of carbohydrates, lignins, tannins, fats, oils, waxes, resins, proteins, minerals, and other assorted compounds.
With the exception of the mineral fraction, the organic compounds are composed of varying...
Organic compounds are generally characterized by chains of connected carbon atoms.
www.bookrags.com /Organic_compound   (359 words)

  
 Certified Organic Compound Formulas
All compounds are whole plant medicines of the highest quality, formulated by Herbalist, Gail Faith Edwards here at the Blessed Maine Herb Farm.
Herbs and flowers are MOFGA/USDA Certified Organic and Wildgathered, and are in a base of CERTIFIED ORGANIC GRAPE ALCOHOL made from certified organic grapes.
In addition, organic grape alcohol is hypo-allergenic and guaranteed 100% free of genetic modification.
www.blessedmaineherbs.com /comfor.html   (965 words)

  
 Qualitative Analysis of Organic Compounds.
Students are advised to develop a general knowledge of the physical characteristics of common organic compounds.
In organic compounds the elements commonly occurring along with carbon and hydrogen, are oxygen, nitrogen, sulphur, chlorine, bromine and iodine.
Two common types of unsaturated compounds are alkenes and alkynes characterised by the carbon-carbon double and triple bond, respectively, as the functional group.
wwwchem.uwimona.edu.jm:1104 /lab_manuals/c10expt25.html   (4304 words)

  
 Re: what is the difference detween an inorganic and organic compound?
And unquestionably organic molecules, such as the amino acid glycine, have been found in interstellar space where there are no living things.
An organic compound is whatever an organic chemist says it is; an inorganic compound is whatever an inorganic chemist says it is.
Normally organic chemists study organic or organometallic compounds, and inorganic chemists study organometallic compounds or inorganic compounds.
www.madsci.org /posts/archives/dec2000/975719013.Ch.r.html   (625 words)

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