Acetic acid is used as a chemical reagent for the production of a number of chemical compounds. It is mainly used in the production of vinyl acetate monomer, acetic anhydride and ester production. To purify organic compounds, acetic acid is used as a solvent for recrystallization. Acetic acid is also known as the second simplest carboxylic acid. Acetic acid is most popularly known because of its use in vinegar. A majority of the acetic acid produced is used to produce vinyl acetate monomer (VAM), which is the building block to make paints, adhesives, packaging and more.