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Acetic anhydride can be obtained directly by liquid-phase oxidation of acetaldehyde. The peracetic acid formed from oxygen and acetaldehyde reacts under suitable conditions with a second molecule of acetaldehyde to form acetic anhydride and water .
Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O. Commonly abbreviated Ac 2 O , it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis .
Acetic anhydride. Formula: C 4 H 6 O 3. Molecular weight: 102.0886. IUPAC Standard InChI:InChI=1S/C4H6O3/c1-3 (5)7-4 (2)6/h1-2H3 Copy. IUPAC Standard InChIKey:WFDIJRYMOXRFFG-UHFFFAOYSA-N Copy. CAS Registry Number: 108-24-7.
12 Φεβ 2024 · Acetic anhydride is a colorless organic liquid with the formula (CH 3 CO) 2 O and the simplest example of a carboxylic acid anhydride (the simpler formic anhydride is too unstable to exist as pure substance). It is a very useful reagent in organic synthesis.
Acetic anhydride dissolves in water to approximately 2.6% by weight. Aqueous solutions have limited stability because, like most acid anhydrides, acetic anhydride hydrolyses to give acetic acid: [6] (CH 3 CO) 2 O + H 2 O → 2 CH 3 CO 2 H
Acetic anhydride. Formula: C 4 H 6 O 3. Molecular weight: 102.0886. IUPAC Standard InChI: InChI=1S/C4H6O3/c1-3 (5)7-4 (2)6/h1-2H3. IUPAC Standard InChIKey: WFDIJRYMOXRFFG-UHFFFAOYSA-N. CAS Registry Number: 108-24-7. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file.
28 Οκτ 2024 · At a temperature of -73.1 °C, acetic anhydride undergoes a solid-to-liquid phase transition (melting point). On the other hand, it boils at 140 °C under a pressure of 101.3 kPa (boiling point). Acetic anhydride demonstrates miscibility with polar solvents and exhibits solubility in cold alcohol, albeit with a slow decomposition rate.
