Sunday, April 10, 2011

Ethyl Butyrate

Ethyl butyrate, is an ester with the chemical formula C6H12O2. Ethyl butyrate is soluble in propylene glycol, paraffin oil, and kerosene. Ethyl butyrate IUPAC name is Ethyl butanoate.


Molecular Formula: C6H12O2
Melting Point: -93C
Boiling Point: 121C
H2O Solubility: slighty soluble
Molecular Weight: 116.16 g/mol
Density: 0.879 g/cm3

Ethyl Butyrate is commonly used as artificial flavoring in alcoholic beverages, a solvent in perfumery products, and as a plasticizer for cellulose. In addition, Ethyl butyrate is often even added to orange juice.

Ethyl butyrate is one of the most common chemicals used in flavors and fragrances. It can be used in a variety of flavors such as, orange, cherry, pineapple, mango, guava, bubblegum, peach, apricot, fig, and plum. Industrially-speaking, it’s also one of the cheapest chemicals, which only adds to its popularity.

Ethyl butyrate can be synthesized by reacting ethanol and butyric acid. This is a condensation reaction, meaning water is produced in the reaction as a byproduct. This is shown below.



The reaction of a carboxylic acid and an alcohol yields an ester and water is eliminated.
The functional group of an ester is O=C-O. Ester formation is an equilibrium process catalyzed by an acid catalyst.

An ester is made from an alcohol and a carboxylic acid. An acid and a alcohol in ethyl butyrate is shown below.

The synthesis of ethyl 2-ethylhexanoate is an example of ethyl butanoate converted to another carboxylic acid. Here ethyl butanoate and 1-bromobutane  are reacted together to form ethyl 2-ethylhexanoate



References:


-http://en.wikipedia.org/wiki/Ethyl_butyrate

No comments:

Post a Comment