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Encyclopedia > Carbonyl sulfide
Carbonyl sulfide
Carbonyl sulfide
Chemical name carbonyl sulfide
Chemical formula OCS
InChI InChI=1/COS/c2-1-3
Molecular mass 60.07 g/mol
Melting point -139 °C
Boiling point -50 °C
Density 2.51 g/cm3
CAS number 463-58-1
SMILES O=C=S
NFPA 704
Image:nfpa h3.png Image:nfpa f4.png Image:nfpa r0.png
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Carbonyl sulfide is a colourless gas at room temperature with an unpleasant odor. The chemical formula is OCS or COS and the molecule consists of a carbonyl group with the carbon atom also double bonded to a sulfur atom. Image File history File links Download high resolution version (874x289, 7 KB) Summary Description: Structural formula of carbonyl sulfide (O=C=S). ... IUPAC nomenclature is a system of naming chemical compounds and of describing the science of chemistry in general. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... InChI is the IUPACs International Chemical Identifier. ... The molecular mass (abbreviated MM) of a substance, called molecular weight and abbreviated as MW, is the mass of one molecule of that substance, relative to the unified atomic mass unit u (equal to 1/12 the mass of one atom of carbon-12). ... The melting point of a solid is the temperature at which it changes state from solid to liquid. ... The boiling point of a substance is the temperature at which it can change its state from a liquid to a gas throughout the bulk of the liquid. ... Density (symbol: ρ - Greek: rho) is a measure of mass per unit of volume. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... The simplified molecular input line entry specification or SMILES is a specification for unambiguously describing the structure of chemical molecules using short ASCII strings. ... NFPA 704 is a standard maintained by the U.S. National Fire Protection Association. ... Image File history File links File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... In chemistry, the standard state of a material is its state at 1 bar (100 kilopascals) and 25 degrees Celsius (298. ... A gas is one of the four main phases of matter (after solid and liquid, and followed by plasma), that subsequently appear as a solid material is subjected to increasingly higher temperatures. ... Room temperature, in laboratory reports, is taken to be roughly 21–23 degrees Celsius (69-73 degrees Fahrenheit), or 294–296 kelvins. ... JUNIOR Odor receptors on the antennae of a Luna moth An odor (American English) or odour (Commonwealth English) is the object of perception of the sense of olfaction. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom. ... Covalent bonding is a form of chemical bonding characterized by the sharing of one or more pairs of electrons between atoms, in order to produce a mutual attraction, which holds the resultant molecule together. ...


Carbonyl sulfide is the major sulfur compound naturally present in the atmosphere at 0.5 (± 0.05) ppb and is an important part of the global sulfur cycle. It is also present in foodstuffs such as cheese and prepared vegetables of the cabbage family. OCS is naturally present in grains and seeds in the range of 0.05-0.1 mg kg-1. Parts per billion (ppb) is a measure of concentration that is used where low levels of concentration are significant. ... Wikipedia does not have an article with this exact name. ... Food from plant sources Food is any substance normally eaten or drunk by living organisms. ... Cheese is a food made from the curdled milk of cows, goats, sheep, or other mammals. ... Vegetables in a market Tomatoes growing in a vegetable garden Venn diagram representing the relationship between fruits and vegetables For other uses, see Vegetable (disambiguation). ... Cultivar Group Brassica oleraceaCapitata Group The cabbage (Brassica oleracea Capitata Group) is a plant of the Family Brassicaceae (or Cruciferae). ... The word grain has several meanings, most being descriptive of a small piece or particle. ... A ripe red jalapeno cut open to show the seeds For other uses, see Seed (disambiguation). ...


Carbonyl sulfide is a component of volcanic gasses and gasses emitted by deep sea vents. This compound is found to catalyze the formation of peptides from amino acids. This finding is an extention of the Miller-Urey experiment and it is suggested that carbonyl sulfide played a significant role in the origin of life [1]. A volcano is a geological landform where magma (rock from the Earths interior made molten by extremely high temperatures along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of a planet. ... A black smoker in the Atlantic Ocean Black smokers are a type of hydrothermal vent found on the ocean floor. ... Generic graph showing the effect of a catalyst in an hypotetical exothermic chemical reaction. ... Peptides (from the Greek πεπτος, digestible), are the family of short molecules formed from the linking, in a defined order, of various α-amino acids. ... In chemistry, an amino acid is any molecule that contains both amino and carboxylic acid functional groups. ... The Miller-Urey experiment attempts to recreate the chemical conditions of the primitive Earth in the laboratory, and synthesized some of the building blocks of life. ... Pre-Cambrian stromatolites in the Siyeh Formation, Glacier National Park. ...


Carbonyl sulfide forms in the atmosphere as a result of sulfur emissions. In one study the tracking of carbonyl sulfide in Antarctica ice cores gives a detailed picture of OCS concentrations from 1640 to the present day separating anthropogenic and non-anthropogenic sulfur sources. Carbonyl sulfide is transported into the stratospheric sulfate layer where it is oxidized to sulfuric acid. Layers of Atmosphere (NOAA) Earths atmosphere is a layer of gases surrounding the planet Earth and retained by the Earths gravity. ... General Name, Symbol, Number sulfur, S, 16 Chemical series nonmetals Group, Period, Block 16, 3, p Appearance lemon yellow Atomic mass 32. ... Ice Core sample taken from drill. ... Events December 1 - Portugal regains its independence from Spain and João IV of Portugal becomes king. ... Anthropogenic effects or processes are derived from human activities, as opposed to effects or processes that occur in the natural environment without human influences. ... The stratosphere is a layer of Earths atmosphere that is stratified in temperature, with warmer layers higher up and cooler layers farther down. ... Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. ...


Carbonyl sulfide is a potential fumigant and a replacement for methyl bromide and phosphine. Carbonyl sulfide is also an interstellar molecule. Fumigation is a method of pest control that completely fills an area with gaseous pesticides to suffocate or poison the pests within. ... The chemical compound bromomethane is an organic halogen compound with formula BrCH3. ... R-phrases , , , , S-phrases , , , , , Flash point flammable gas Autoignition temperature 38 °C (see text) Explosive limits 1. ... This is a list of molecules that have been detected in the interstellar medium, as of 2003. ...


External links

References

  1.   Carbonyl Sulfide–Mediated Prebiotic Formation of Peptides Luke Leman, Leslie Orgel, M. Reza Ghadiri Science October 8, 2004
  2.   The possible importance of COS for the sulfate layer of the stratosphere. Paul Crutzen Geophys. Res. Lett., 3, 73–76. 1976

  Results from FactBites:
 
Carbonyl sulfide - Wikipedia, the free encyclopedia (308 words)
Carbonyl sulfide is the major sulfur compound naturally present in the atmosphere at 0.5 (± 0.05) ppb and is an important part of the global sulfur cycle.
Carbonyl sulfide is a component of volcanic gasses and gasses emitted by deep sea vents.
Carbonyl sulfide is transported into the stratospheric sulfate layer where it is oxidized to sulfuric acid.
  More results at FactBites »

 
 

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