Chlorous acid is a powerful, selective oxidizing agent widely utilized in disinfection, bleaching, and water treatment sectors. It serves as a key active ingredient in environmentally friendly sanitizers, effectively eliminating bacteria, viruses, fungi, and biofilms without forming harmful byproducts like trihalomethanes. In food and beverage industry, it disinfects processing equipment, packaging materials, and fresh produce, extending shelf life while complying with food safety standards. In water treatment, it controls algae and slime in cooling towers, swimming pools, and municipal water systems. It acts as a mild bleaching agent for textiles, pulp, and paper, preserving fiber strength compared to chlorine-based bleaches. Additionally, it is employed in oral care, wound disinfection, and industrial surface treatment, leveraging its antimicrobial and deodorizing properties. As a green alternative to traditional disinfectants, it supports sustainable practices across multiple industries.

Chlorous acid is a corrosive and oxidizing substance (GHS Category 1B for skin corrosion, Category 1 for eye damage, Category 3 for oxidizing liquids). It causes severe skin burns, eye damage, and respiratory tract irritation upon contact or inhalation. Ingestion leads to gastrointestinal burns, nausea, vomiting, and tissue damage. It reacts violently with strong bases, reducing agents, organic materials, and metals, releasing toxic chlorine dioxide gas. Wear chemical-resistant gloves, safety goggles, face shield, and respiratory protection during handling. Avoid skin/eye contact, inhalation of vapors, and ingestion. In case of contact, rinse skin/eyes with plenty of water for 15 minutes and seek immediate medical attention. Store in cool, dry, well-ventilated area, separated from incompatible substances. Dispose of waste in accordance with local hazardous waste regulations. Follow strict safety protocols to prevent exposure and environmental harm.