Formic acid has a molecular structure characterized by a single carbon atom bonded to both a hydroxyl group (-OH) and a carbonyl group (C=O), making it a potent carboxylic acid. The chemical formula HCOOH indicates that it consists of two hydrogen atoms, two oxygen atoms, and one carbon atom. It is a colorless, corrosive liquid with a pungent odor, and it is highly soluble in water, alcohol, and ether. The presence of both a carbonyl and a hydroxyl group contributes to its reactivity, making formic acid a valuable intermediate in organic synthesis.

Sodium benzoate is a widely used preservative found in various food products, cosmetics, and pharmaceuticals. Its efficacy as a preservative and its safety profile have made it a popular choice for many manufacturers. This article will explore the properties, uses, and regulatory status of sodium benzoate, as well as any controversies surrounding its use.