colourless liquid with a pungent odour; manufactured by bubbling air through a mixture of ethanal and ethanoic acid in the presence of catalyst; or by reacting keten, derived by the cracking of ethanoic acid or propanone with etanoic acid. Largely used for the production of cellulose ethanoate, also used for the manufacture of vinyl ethanoate and aspirin., äädikhape - tugev orgaanilin hape, mille soolad on atsetaadid ; anhüdriid - ühend, mis tekib ainest vee eraldamisel