Propionic Acid

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Related to Propionic: propionic acid, Propionic anhydride

propionic acid

[¦prō·pē¦än·ik ′as·əd]
(organic chemistry)
CH3CH2COOH Water- and alcohol-soluble, clear, colorless liquid with pungent aroma; boils at 140.7°C; used to manufacture various propionates, in nickel-electroplating solutions, for perfume esters and artificial flavors, for pharmaceuticals, and as a cellulosics solvent. Also known as methylacetic acid; propanoic acid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Propionic Acid


CH3CH2COOH, a monocarboxylic acid of the aliphatic series. It is a colorless liquid with a pungent odor and has a melting point of — 20.8°C, a boiling point of 140.8°C, and a density of 0.993 g/cm3 (20°C). It is soluble in water, alcohol, and ether.

Propionic acid is formed during the fermentation of carbohydrates by propionic acid bacteria and certain other bacteria. In industry it is obtained chiefly through the oxidation of paraffin hydrocarbons as a by-product in the preparation of acetic acid. Propionic acid and its salts (Na, K, and others) are used as fungicides. Propionic anhydride is used in the manufacture of cellulose esters, and geranyl propionate and various other esters are used in perfume bases.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Cardiomyopathies in propionic aciduria are reversible after liver transplantation.
The components of ethanol and VFAs (acetic acid, propionic acid, and butyric acid from the liquid phase of the reaction system) were analyzed through gas chromatography (AAC GC-112, China).
Prior to the time of his listing a cadaveric liver graft offer had already been given to the child with propionic acidemia and no other suitable grafts were available.
Propionic acid (g/kg DM)###1.78bcd###3.69abc###4.54ab###5.09a###1.43cd###0.47d###0.74cd###0.0004###0.4358
It is revealed that the comparatively lower concentration of 80% of formic acid was required than that of acetic and propionic acid.
In this study, propionic acid and PmB were significantly associated with IBS, and PmB was negatively associated with IL-10 in the CSF, which may suggest that the SCFA are involved in the brain-gut communication.
Other researchers have observed that inoculants containing propionic acid bacteria produce metabolites that benefit the growth of lactic acid bacteria [40].
Valley Cottage, NY, January 14, 2016 --( Calcium propionate is the calcium salt of propionic acid.
Rumen fermentation breaks down glycerol, and the main product is propionic acid, which is a precursor of fatty acids and glucose metabolites in ruminants.
Group of organic acidemias, like methylmalonic acidemia, propionic acidemia and isovaleric acidemia.