This compound is a high-value anionic functional monomer widely applied in polymer synthesis and industrial additives. As the third monomer for acrylic fiber (PAN fiber), it significantly improves dyeability, heat resistance, hydrophilicity, and spinnability by introducing sulfonate groups, enhancing fiber quality and color fastness. In construction chemicals, it serves as a key monomer for polycarboxylate superplasticizers, providing sulfonic acid groups to impart high dispersibility, slump retention, and retardation properties, crucial for high-performance concrete and ready-mix concrete. In water treatment, it copolymerizes with acrylic acid/acrylamide to produce scale inhibitors and corrosion inhibitors, effectively preventing calcium carbonate scaling and metal corrosion in cooling water and boiler systems. In petroleum engineering, it acts as a fluid loss additive and high-temperature salt-resistant dispersant for drilling fluids, stabilizing mud properties under harsh downhole conditions. Additionally, it is used in coatings, papermaking, and textiles as a dispersant, emulsifier, and antistatic agent, improving resin water solubility, paper dry strength, and fabric processability.

This chemical is classified as a low-toxicity irritant with GHS hazard statements H315 (Causes skin irritation), H317 (May cause an allergic skin reaction), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Direct skin contact may cause redness, itching, and mild inflammation; prolonged or repeated exposure could trigger allergic dermatitis in sensitive individuals, requiring immediate washing with soap and water. Eye exposure can lead to severe irritation, tearing, and conjunctival damage; irrigate eyes continuously with copious water for at least 15 minutes and seek medical attention if symptoms persist. Inhalation of dust may irritate the respiratory tract, causing coughing, throat dryness, or shortness of breath; handle only in a well-ventilated fume hood with a dust mask. Ingestion may cause gastrointestinal discomfort, nausea, and diarrhea; do not induce vomiting and seek medical advice promptly. During handling, wear chemical-resistant gloves, safety goggles, and protective clothing; store in a sealed, dry, cool place away from moisture, oxidants, and heat sources. Dispose of waste in accordance with local hazardous waste regulations; avoid release into the environment to prevent potential water and soil pollution.