Acrylic Acid (AA) is a colorless, transparent liquid with a pungent acidic odor at room temperature, and it is miscible with water and a variety of organic solvents. Its molecule contains both a highly reactive carbon-carbon double bond and a carboxyl group, enabling it to exhibit the typical acidity of carboxylic acids (such as esterification) while also being highly prone to polymerization and copolymerization reactions. This unique chemical structure makes it a crucial intermediate in the chemical industry. Its main applications include: producing acrylic ester monomers (used in coatings and adhesives) through esterification, preparing superabsorbent polymers (SAP, used in hygiene products) via polymerization, and synthesizing polyacrylic acid and its copolymers (used as dispersants, thickeners, and other industrial auxiliaries).