Acetic anhydride

Acetic anhydride
Names
	IUPAC name Acetic anhydride
	Systematic IUPAC name Ethanoic anhydride
	Other names Acetyl acetate
Identifiers
CAS Number	108-24-7 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEBI	CHEBI:36610 ;
ChEMBL	ChEMBL1305819;
ChemSpider	7630 ;
ECHA InfoCard	100.003.241
EC Number	203-564-8;
PubChem CID	7918;
RTECS number	AK1925000;
UNII	2E48G1QI9Q ;
UN number	1715
CompTox Dashboard (EPA)	DTXSID0024395 ;
	SMILES O=C(OC(=O)C)C; CC(=O)OC(=O)C;
Properties
Chemical formula	C4H6O3
Molar mass	102.09 g·mol−1
Appearance	colorless liquid
Density	1.082 g cm−3, liquid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Acetic anhydride is an organic compound with the chemical formula (CH₃CO)₂O. It is the acid anhydride of acetic acid.

Production

Acetic anhydride can be produced by adding a molecule of carbon monoxide to methyl acetate (carbonylation). This is analogous to the production of acetic acid from methanol in the Monsanto process, but is more complex in practice because of changes in byproducts and a need for anhydrous (water-free) conditions.^[1]

Sources

↑ Zoeller, Joseph R.; Agreda, Victor H.; Cook, Steven L.; Lafferty, Norma L.; Polichnowski, Stanley W.; Pond, David M. (1992). "Eastman chemical company acetic anhydride process". Catalysis Today. 13: 73–91. doi:10.1016/0920-5861(92)80188-S.

[1] Zoeller, Joseph R.; Agreda, Victor H.; Cook, Steven L.; Lafferty, Norma L.; Polichnowski, Stanley W.; Pond, David M. (1992). "Eastman chemical company acetic anhydride process". Catalysis Today. 13: 73–91. doi:10.1016/0920-5861(92)80188-S.

[1]