Friday, March 9, 2012

Ethyl Acetate

Colorless liquid with an ether-like, fruity odor.

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Ethyl acetate is used as a solvent in oil-based lacquers and enamels (especialy in polyurethane finishes) and in inks and adhesives. It is also used as a solvent in many chemical processes.

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Workers regularly exposed to concentrations from 375 to 1,500 ppm for several months showed no unusual signs or symptoms [Patty 1963]. Concentrations in the range of 8,000 to 20,000 ppm have been considered dangerous for short exposures [Henderson and Haggard 1943].

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To 1 ml of Ethyl Acetate, add 5 ml of sodium hydroxide solution (1→4), and heat in a water bath while shaking. The fruity odor disappears. Acidify this solution with diluted sulfuric acid, and heat again in a water bath while shaking. An odor of acetic acid is evolved.
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