acid anhydride

This article is about an organic functional group: for the anhydrides of inorganic compounds, see acidic oxide. An acid anhydride is an organic compound which has two acyl groups bound to the same oxygen atom. When the two acyl groups are directly derived from a carboxylic acid (the most common case), the general formula is RC(O)OC(O)R. Symmetrical acid anhydrides of this type are named by replacing the word "acid" in the name of the parent carboxylic acid by the word "anhydride". Thus, CH3C(O)OC(O)CH3 is called "acetic anhydride."
See more at Wikipedia.org...

In chemistry, an anhydride is a compound that can be considered as derived from another compound by subtracting the molecules of water. For example:2 NaOH - H2O = Na₂OH₂SO₄ - H2O = SO₃Thus sodium oxide is an anhydride of sodium hydroxide, and sulfur trioxide is an anhydride of sulfuric acid.
See more at Wikipedia.org...

 Say it 
Compare with acid .Nonmetallic oxides or organic compounds that react with water to form acids . For example, SO2, CO2, P2O5, and SO3 are the acid anhydrides of sulfurous, carbonic, phosphoric, and sulfuric acids, respectively. Acetic anhydride (CH3CO)2O) reacts with water to form acetic acid.

B: (Kimia) anhidrida asam
Built to Babylon by Hikmat Gumilar Visit my Website;