![]() ![]() This reaction gives ethanol and sodium acetate, which is not able to react with ethanol any longer. To obtain high yields of the products, it is preferable to use a stoichiometric amount of strong base, such as sodium hydroxide. However, the use of an acid catalyst (such as sulfuric acid) gives poor yields, because the forward reaction is in equilibrium with the backward reaction. At elevated temperature its solubility in water is higher.Įthyl acetate can be hydrolyzed in acidic or basic conditions to produce acetic acid and ethanol. Ethyl acetate can dissolve up to three percent water and has a solubility of eight percent in water at room temperature. It is a weak hydrogen bond acceptor, and is not a donor due to the lack of an acidic proton (that is, a hydrogen atom directly bonded to an electronegative atom such as fluorine, oxygen, or nitrogen). When present at too high a concentration in wine, it is regarded as an off-flavor.Įthyl acetate is a moderately polar solvent that has the advantages of being volatile, relatively non-toxic, and non-hygroscopic. At low concentrations, it can enhance the taste of a wine, but it is considered a contaminant at relatively high concentrations, as occurs when wine is exposed to air for a prolonged period. Entomologists use it for insect collection, preservation, and study.Įthyl acetate is a by-product of fermentation and is present in fruits and wines. It is an ingredient in confectionery and perfumes, and it is added to paints to serve as an activator or hardener. It is also useful in the process of decaffeination of coffee and tea. Ethyl acetate is manufactured on a large scale for use as a solvent, such as for nail polish and nail polish removers.
0 Comments
Leave a Reply. |