![]() Principal characteristic peak is ν(C=O) at 1710 cm -1 also ν(C-O) at ~ 1240 cm -1 Quartet d ~ 4.1 ppm relative intensity 2 assigned to CH 2 part of ethyl group, quartet splitting due to neighbouring CH 3.Singlet d ~ 1.9 ppm relative intensity 3 assigned to CH 3 part of acetyl (ethanoyl) group, no splitting as no hydrogens attached to adjacent carbon.Triplet d ~ 1.3 ppm relative intensity 3 assigned to CH 3 part of ethyl group, triplet splitting due to neighbouring CH 2.Uses of ethyl acetateĪrtificial fruit essences and aroma enhancer artificial flavours for confectionery, ice cream and cakes solvent in many applications (including decaffeinating tea and coffee) for varnishes and paints (nail varnish remover) manufacture of printing inks and perfumes, etc. Other routes include the reaction of acetyl chloride (ethanoyl chloride) with ethanol. The equilibrium lies slightly on the ester side yields can be improved by removing water as an azeotropic mixture with benzene (or a drying agent like molecular sieves) or by the use of excess alcohol (application of le Chatelier's principle). PreparationĮthyl acetate is traditionally synthesised from by heating ethanol with ethanoic acid in the presence of a catalytic amount of a strong acid such as sulphuric acid (the "Fischer" method).ĬH 3COOH + CH 3CH 2OH CH 3COOCH 2CH 3 + H 2O ![]() Ethyl acetate itself is a colourless liquid at room temperature with a pleasant "fruity" smell, b.p. These are structurally derived from carboxylic acids by replacing the acidic hydrogen by an alkyl or aryl group. Ethyl Acetate - Molecule of the Month - March 2003 - HTML versionĮTHYL ACETATE (known in the world of academe as Ethyl Ethanoate) AND SOME OTHER INTERESTING ESTERS AND LACTONES.Įthyl acetate is a member of the ester family.
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