Poly(acrylic acid) is widely used as a thickening agent in various industries, including cosmetics and personal care products, where it enhances the viscosity and stability of formulations like lotions, creams, and gels. In the pharmaceutical sector, it serves as a key component in drug delivery systems, enabling controlled release of active ingredients. It is also employed in water treatment processes as a dispersant and scale inhibitor, preventing the buildup of minerals in pipelines and equipment. Additionally, poly(acrylic acid) is utilized in the production of superabsorbent polymers, which are essential in hygiene products such as diapers and sanitary napkins for their ability to absorb large amounts of liquid. In agriculture, it is used in soil conditioners to improve water retention and nutrient availability for plants. Its adhesive properties make it valuable in the manufacturing of paints, coatings, and adhesives, providing enhanced binding and film-forming capabilities.