Uses of Carboxylic Acids

Carboxylic acids are not just a functional group to name and prepare — several of them are everyday industrial chemicals. This section lists the acids the NCERT syllabus singles out for their practical applications.

Methanoic Acid (Formic Acid)

The simplest carboxylic acid finds application across several process industries. It is used in the rubber industry (as a coagulant for latex), in textile and dyeing processing, in leather processing (tanning/dehairing), and in electroplating baths.

Ethanoic Acid (Acetic Acid)

Ethanoic acid serves two everyday roles:

• as a general-purpose solvent in organic and industrial chemistry
• as vinegar (a dilute aqueous solution) in the food industry, where it is used as a preservative and flavouring agent

Hexanedioic Acid (Adipic Acid)

This dicarboxylic acid is the key industrial precursor used in the manufacture of nylon-6,6, one of the most widely produced synthetic polyamide fibres. Its two –COOH groups let it condense with a diamine to build up the long polymer chain.

Benzoic Acid and Its Derivatives

Benzoic acid itself is not consumed directly for these uses — it is converted into two different derivatives, each exploited for a distinct property:

• Esters of benzoic acid (formed with various alcohols) are used in perfumery, valued for their pleasant fragrance. …