In the proposed scheme, the ancestor is ethanol and the glycolaldehyde sister species are acetic acid (another iCOM with unknown gas-phase formation routes) and formic acid.

Formation of ethanoic acid When ethanol is oxidised by microbes, it forms a compound called ethanoic acid (CH 3 COOH), which is a form of carboxylic acid . This is the acid found in vinegar.

Carboxylic acids can undergo reduction reactions. Reduction is the opposite of oxidation. For example, ethanoic acid (CH 3 COOH) can be formed by the oxidation of ethanol as shown below. As ...

A STUDY of the physico-chemical properties of mixtures of pyridine and acetic acid in all proportions ranging from 0 to 100 per cent by various workers and very recently by us1 showed that the ...