00:01
In the question it is mentioned that the product of aldol condensation is washed with 4 % acidic acid and 95 % of ethanol.
00:18
Okay, we have to give reasons why this wash solution is used.
00:25
So acidic acid we use acidic acid to remove impurities.
00:34
Okay, so the precipitate form is washed mainly to remove the impurities present which may include the unreacted starting materials or any byproduct formed.
00:50
Another reason why acidic acid is used is because it neutralizes the basic products that are formed.
01:02
So aldol condensation reaction is accompanied by the formation of basic products.
01:10
So since acidic acid is a proton donor, which is an acid.
01:16
So obviously it is a proton donor.
01:18
So it will neutralize any basic product that is generated by the reaction.
01:25
Also it helps in crystallization of the final product.
01:31
So this is why we use acidic acid ethanol...