An acetylide ion is an alkyne that has had a proton (hydrogen) removed from the terminal end. So, for example, the alkyne CH3C≡CH could be deprotonated to form the acetylide ion CH3C≡C-. Once it has been deprotonated it becomes a strong nucleophile. Alkynes are hydrocarbons that have at least one triple bond between two carbon atoms. ... In chemistry, a nucleophile (literally nucleus lover) is a reagent which is attracted to centres of positive charge. ...
Acetylide ions are very useful in organic chemistry reactions in combining carbon chains, particularly addition and substitution reactions. Organic chemistry is the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds that by definition contain carbon. ... An addition reaction, in chemistry, is in its simplest terms a organic reaction where two or more molecules combine to form a larger one. ... In a substitution reaction, a group of a particular compound is replaced by another group. ...
Acetylide or Carbide salts are the reason why you should never work acetylene gas with Silver, Copper or Ag/Cu plated utensils: These unstable crystalline explosive compounds form with relative ease by the ionic exchange between acetylene gas and silver or copper salts (reaction outlined below).
Acetylide explosives are unique in that unlike almost every other explosive known their detonation results in the formation of absolutely no gases (Ag2C2(s) => Ag2(s) + C(s)).
Acetylide Heat test (206k): Two small amounts of silver acetylide are dropped on a hot plate first set to 200C, than to 250C.
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