Organic Acid: Explained Completely
by : Rahul Sharma
ORGANIC ACID:
There are two type of Organic Acid ;
(1) Formic Acid (HCOOH)
(2) Acetic Acid (CH3COOH)
1). FORMIC ACID:
Formic Acid formula is HCOOH. Formic Acid is the simplest organic acid in terms of its organic structure. Concentrated HCOOH is usually 88% in strength. Since formic acid is a volatile acid, precautions should be taken to prevent loss of strength in the sample preparation stage. The concentration of formic acid can be determined by acid– base titration as well as by redox titration owing to the reduction power of formic acid.
2) ACETIC ACID:
Acetic Acid formula is CH3COOH. It is weak acid. It is available at different concentration. Highly concentrated acetic acid at 98% and above is called glacial acetic acid because its freezing point range is between 13.3 ºC (98%) and 16.7 ºC (100%). Glacial acetic acid is flammable. The concentration of acetic acid can easily be determined using acid–base titration with phenolphthalein as an indicator. The water used should be free from CO2, prepared by boiling before use.
