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Posts : 77
Join date : 2010-04-06
 |  Subject: History of Propionic acid  Thu May 06, 2010 9:54 am | |
| Propionic acid （CAS No.:79-09-4） is a naturally-occurring carboxylic acid with chemical formula CH3CH2COOH. It is a clear liquid with a pungent odor.Propionic acid was first described in 1844 by Johann Gottlieb. Over the next few years, other chemists produced propionic acid in various other ways, none of them realizing they were producing the same substance. In 1847, the French chemist Jean-Baptiste Dumas established that all the acids were the same compound, which he called propionic acid,it was the smallest H(CH2)nCOOH acid that exhibited the properties of the other fatty acids, such as producing an oily layer when salted out of water and having a soapy potassium salt. | |
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