- a compound produced by the reaction between an acid and an alcohol with the elimination of a molecule of water, as ethyl acetate, C4H8O2, or dimethyl sulfate, C2H6SO4.
Origin of ester
Examples from the Web for esters
I was trying to find information about a long-dead character who hailed from Esters' part of the state.
"She did refuse to have me on the show," Esters told me in her distinctly non-whiney way.
On the phone, Esters assured me that Kelley's statements about their meetings are a big, honking fabrication.
Kelley mentioned one other: That Esters has been stomped into submission by an 800-pound Harpo.
I'm sure that great pressure has been brought to bear on Mrs. Esters.
Further proof for these constitutions was sought in the study of the esters formed when the acids react with alcohols.
The natural fats, vegetable oils, and plant waxes are all esters.
These salts, or esters, are known under the general name "nucleoproteins."
This fact explains the so-called “catalytic” action of acids and bases in decomposing such compounds as the esters.
It consists of esters of glycerine with fatty and other acids, and these are generally termed glycerides.The New Gresham Encyclopedia
- chem any of a class of compounds produced by reaction between acids and alcohols with the elimination of water. Esters with low molecular weights, such as ethyl acetate, are usually volatile fragrant liquids; fats are solid esters
Word Origin and History for esters
compound formed by an acid joined to an alcohol, 1852, coined in German in 1848 by German chemist Leoipold Gmelin (1788-1853), professor at Heidelberg. "[A]pparently a pure invention" [Flood], perhaps a contraction of or abstraction from Essigäther, the German name for ethyl acetate, from Essig "vinegar" + Äther "ether" (see ether).
Essig is from Old High German ezzih, from a metathesis of Latin acetum (see vinegar).
- Any of a class of organic compounds corresponding to the inorganic salts and formed from an organic acid and an alcohol, usually with the elimination of water.
- An organic compound formed when an acid and an alcohol combine and release water. Esters formed from carboxylic acids are the most common, and have the general formula RCOOR′, where R and R′ are organic radicals. Esters formed from simple hydrocarbon groups are colorless, volatile liquids with pleasant aromas and create the fragrances and flavors of many flowers and fruits. They are also used as food flavorings. Larger esters, formed from long-chain carboxylic acids, commonly occur as animal and vegetable fats, oils, and waxes. Esters have a wide range of uses in industry.