👉 Naphthalization is a process in which a carboxylic acid (a compound that contains an alcohol group) is converted into an ester, a substance that has a chain of carbon-carbon bonds. This reaction occurs when a carboxylic acid and an alcohol are reacted with each other to form a new compound. The resulting compound will have a chain of carbon-carbon bonds and may have different properties from the original carboxylic acid or alcohol.