Assertion: acetic anhydride | /r/HasProperty | produced
Facets:
Source sentences:
text: , until'the reaction is completed, after which the acetic anhydride which has been produced (together with that originally added) is separated from the reaction mass, preferably by distillation under vacuum.
text: Acetic anhydride can be produced by reacting one molecule of the ketene intermediate obtained by the pyrolysis of acetic acid with another molecule of acetic acid.
text: In addition to the water removal problem, there exists another cost-related deficiency in the above process for the preparation of acetic anhydride: that is, methyl acetate is prepared by esterifying acetic acid with methanol and the methyl acetate so produced is used as the starting material for the next carbonylation step wherein said acetic anhydride (and acetic acid) is produced, which further increases the overall production cost of acetic anhydride.