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HOW and WHY do esters release an odor after esterification (condensation reaction...

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chocodonut | Student, Grade 11 | eNoter

Posted October 19, 2012 at 1:51 AM via web

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HOW and WHY do esters release an odor after esterification (condensation reaction between carboxylic acid and alcohol)?

Please EXPLAIN!!!! THANK YOU!!!!

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jerichorayel | College Teacher | (Level 1) Senior Educator

Posted October 19, 2012 at 9:55 AM (Answer #1)

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Esters are known to have a fruit smelling odor. Upon the reaction of carboxylic acid and alcohol, esters is produced. And the presence of fruit-like odor is one of the signs to know if an ester is produced in the reaction. The odors of fruits are due to the presence of complicated mixtures of chemicals (and not always just esters). 

 

We can smell esters because as the reaction proceed, some of the esters formed evaporate and mix to the air thus we can smell it. That is why some esters of low molecular weight are used as fragrance.

 

Hope this helps :)

 

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