The document discusses ethanoic acid, also known as acetic acid. It explains that ethanoic acid is a carboxylic acid used widely as a preservative in pickles. The document outlines some key properties of ethanoic acid, including its melting point of 290K and use as glacial acetic acid in cold climates. It then describes some important reactions of ethanoic acid, such as esterification reactions where it reacts with alcohols to form esters, and how it reacts with bases to form salts.

1. ETHANOIC ACID
 WHAT IS ETHANOIC ACID?
 PROPERTIES OF ETHANOIC ACID.
 REACTIONS OF ETHANOIC ACID.

2. WHAT IS ETHANOIC ACID?
Ethanoic acid is commonly called
as acetic acid and it belongs to a
group of acid called carboxylic acid.

3. PROPERTIES OF ETHANOIC ACID
5-8% of solution of acetic acid in water is
called vinegar and it is used widely as a
preservative in pickles.
The melting point of pure ethanoic acid is
290K and it gets freezes during winter in cold
climates.
Due to which it also get name as glacial acetic
acid.
This compound mostly used in antacids.

4. REACTIONS OF ETHANOIC ACID
• Esterification Reaction:
Esters are most commonly formed by reaction of an
acid and an alcohol. Ethanoic acid reacts with absolute ethanol in the presence of an
acid catalyst to give an esterCH3 COOH + CH3 CH2OH ACID
CH3 C O CH2 CH3
(EHANOIC ACID)
•
•
•
(ETHANOL)
(ESTER)
Esters are sweet-smelling substance.
This are used in making perfumes and as flavoring agents.
On treating with sodium hydroxide, which is an alkali the ester is converted back to
alcohol and sodium salt of carboxylic acid. This reaction is knows as saponification
reaction because it is used in preparation of soap.
CH3COOC2H5 NaOH
C2H5OH+CH3COONa
• Ethanoic acid reacts with a base such as sodium hydroxide to give a salt
and water.
• Ethanoic acid reacts with carbonates and hydrogencarbonates to give rise
salt, carbon dioxide and water. The salt produced is commonly called as
sodium acetate.