Urethane (also called ethyl carbamate) Image File history File links Download high resolution version (2000x3231, 52 KB) Description: chemical structure of urethane Source/Drawer: Self made, 13:23, 31 May 2005 (UTC) License: GNU FDL --Rhododendronbusch 13:23, 31 May 2005 (UTC) (Picture is optimized for printable medias, so its width/resolution is ≥ 2000 pixel...

1. A polymer containing a urethane linkage. 2. Any organic chemical compound contaning a urethane functional group (or linkage). 3. The specific compound (NH₂*COOC₂H₅). This ethyl ester is a white crystalline substance produced by the action of ammonia on ethyl carbonate or by heating urea nitrate and ethyl alcohol. It is used as a hypnotic, antipyretic, and antispasmodic. General Name, Symbol, Number nitrogen, N, 7 Chemical series nonmetals Group, Period, Block 15, 2, p Appearance colorless Atomic mass 14. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... Flash point 11°C R/S statement R: ? S: , , , , RTECS number BO0875000 Supplementary data page Structure and properties n, εr, etc. ... Ethyl alcohol, also known as ethanol or grain alcohol, is a flammable, colorless chemical compound, one of the alcohols that is most often found in alcoholic beverages. ... Hypnotic Seance, by Richard Bergh Hypnosis is understood to be a psychological condition in which an individual may be induced to exhibit apparent changes in behavior and thought. ... Antipyretics are drugs that prevent or reduce fever by lowering the body temperature from a raised state. ... An antispasmodic is a drug that suppresses smooth muscle contraction, especially in tubular organs. ...

Generally, a urethane is an ester of a carbamic acid (RNHCOOQ, where R and Q represent many different organic compounds). Many can be created by an isocyanate reaction with a hydroxyl group of an alcohol (or other hydroxy containing compound) according to the following formula: General formula of an ester of a carboxylic acid. ... Isocyanate is the chemical group of atoms -N=C=O (1 nitrogen, 1 carbon, 1 oxygen), as opposed to cyanate, -O-C≡N, which is formed from cyanogen in the normal -ate manner. ... Hydroxyl group The term hydroxyl group is used to describe the functional group -OH when it is a substituent in an organic compound. ...

 H / R-N R-N=C=O + H-O-Q →  C=O / Q-O 

Although this reaction had been known for some decades, it was not until 1937 that Otto Bayer discovered how to make the very useful polyurethane plastics out of polyisocyanate and polyol (a molecule with multiple hydroxyl groups), (see Polyurethane). There are many other more specialized ways to make urethanes. 1937 (MCMXXXVII) was a common year starting on Friday (link will take you to calendar). ... Otto Bayer A German industrial chemist who in 1937 discovered how to make the very useful polyurethane plastics out of polyisocyanate and polyol. ... A sugar alcohol (also known as a polyol, polyhydric alcohol, or polyalcohol) is a hydrogenated form of carbohydrate, whose carbonyl group (aldehyde or ketone, reducing sugar) has been reduced to a primary or secondary hydroxyl group. ... A polyurethane is any polymer consisting of a chain of organic units joined by urethane links. ...

Urethane technology was brought to America in 1953 by Jean-Pierre Abbat and Dr. Fritz Hartmann. Motto: E pluribus unum (1789 to 1956) (Latin: Out of Many, One) In God We Trust (1956 to present) Anthem: The Star-Spangled Banner Capital Washington, D.C. Largest city New York City Official language(s) None at federal level; English de facto Government • President • Vice President Federal republic George... 1953 (MCMLIII) was a common year starting on Thursday (link is to a full 1953 calendar). ... Jean-Pierre Fernand Noël Abbat was born on June 17, 1928 in Le Trait, Normandy to a shipbuilder. ...

Urethanes are used in pharmaceuticals, (bio)chemical analysis and plastics.

Urethane is also widely used in skateboard and in-line skate wheel production, effectively replacing the clay wheel used before that.

It has been demonstrated to be a carcinogen in rats and mice. // Carcinogen In pathology, a carcinogen is any substance or agent that promotes cancer. ...