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.

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.

References in periodicals archive ?
North America propionic acid market accounted for over 28% of global demand in 2013 and is estimated to lose share to high growth regions such as Asia Pacific.
The agent's encapsulation into an active film matrix controlled and inhibited the propionic acid release rate, making it possible to maintain an effective concentration of the antimicrobial for prolonged periods.
Propionic acid is employed also as a "rope" inhibitor in bread dough [8].
These blood spots were negative for all screened conditions, including inborn errors of propionic acid, Met, or Cbl metabolism, and not suggestive of nutritional vitamin [B.
Propionic (C3) and pentanoic (C5) acids alone were effective inhibitors of test fungi at 6 percent concentration.
Well diffusion assay of Propionic acid against several microbial strains
P3(HB-co-x%HV) copolymer is readily obtained by adding propionic acid to a culture of R.
Products: 2-ehtylhexoic acid, propionic acid, isopropanol, MIBK, MIBC, isophorone, butoxytriglycol, butoxypolyglycol, methoxytriglycol, methoxypolyglycol, ethoxytriglycol, ethoxypolyglycol, Propyl Cellosolve, propoxydiglycol, Dowanol" EPH, Hexyl Cellosolve, Hexyl Carbitol[TM], hexoxypolyglycol, Dowanol[TM] PPH, Dowanol PGDA, Proglyde[TM] DMM
Based on the company's proprietary ingredient made of propionic acid bacteria, the product helps increase bifidobacteria and condition the intestinal environment.
alpha]-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors
Products: Propionic esters, including: UCAR[TM] ester EEP, UCAR n- butyl propionate, UCAR, n-pentyl propionate, and UCAR n- propyl propionate