Propionic Acid

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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 It might be outdated or ideologically biased.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 ?
Only you can decide if that's good value for money but I can say the Mercedes E280 is a very roomy and comfortable car, possibly better than any previous series, and it handles in a sharper and more responsive manner with the air suspension as fitted.
This was a Woodman filly bought by Herve Bargot's Pegasus farms for E280,000 from Italian operation S A R L.
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Lesley stayed at the four-star Sofitel Bakoua in Trois Ilets, with double rooms overlooking private beach from e280 (pounds 196) Telephone: 00 596 596 66 02 02.
They were held at gunpoint overnight and then forced to turn up at the Boots store in Belfast city centre, and remove what police are describing as a substantial sum of cash thought to be in the region of E280,000.
A MERCEDES E280 class which also costs more than pounds 30,000
Other E-Class developments include a new 6-cylinder E320 CDI (3,2-litre/197 bhp) engine to replace the E300 turbo diesel in September, and the arrival of a new E280 V6 Estate Classic at pounds 35,780.
The Bundoran town council member offered her resignation within hours of being found guilty of stealing a E280 ladies' trouser suit.
LMFM posted a profit of over EUR300,000 in 2002, Highland Radio more than E280,000 and Shannonside around EUR270,000.