Poly(acrylic acid) is widely used as a superabsorbent material in hygiene products like diapers and sanitary napkins due to its ability to absorb and retain large amounts of water. In the agricultural sector, it is applied in soil conditioners to improve water retention and enhance plant growth in arid regions.

The chemical is also utilized in the production of detergents and cleaning agents, where it acts as a dispersant and sequestrant to prevent dirt from redepositing on surfaces. In the cosmetics industry, it serves as a thickener and stabilizer in skincare and hair care products, enhancing moisture retention and texture.

In the pharmaceutical industry, it functions as a thickening agent in gels and ointments, providing the desired consistency and stability. Additionally, poly(acrylic acid) is employed in water treatment processes to control scale formation, facilitate flocculation and sedimentation, and improve the efficiency of filtration systems.

In the paper and textile industries, it acts as a processing aid to enhance paper strength and flexibility, and to improve dye fixation and durability in textiles. Its versatility and effectiveness make it a valuable component across various industries.