2,2,2-trichloroacetic acid

2,2,2-trichloroacetic acid is a strong organic acid with the molecular formula C2HCl3O2 and CAS number 76-03-9. This halogenated carboxylic acid contains three chlorine atoms attached to the carbon adjacent to the carboxyl group, making it highly acidic and corrosive. With a molecular weight of 163.38 g/mol, it is classified as a skin corrosive substance (Skin Corr. 1A) and poses environmental hazards to aquatic life.

2,2,2-trichloroacetic acid is typically found as colorless to white crystalline solid at room temperature with a characteristic pungent odor. It is highly soluble in water and polar organic solvents due to its acidic nature and ability to form hydrogen bonds. The compound is hygroscopic, meaning it readily absorbs moisture from air. Its strong acidic properties result from the electron-withdrawing effect of the three chlorine atoms.

2,2,2-trichloroacetic acid is primarily used as a protein precipitating agent in biochemistry and molecular biology laboratories for sample preparation and purification processes. It serves as an intermediate in pharmaceutical synthesis and chemical manufacturing. The compound is also utilized in analytical chemistry for protein determination and in dermatology for chemical peels. Additionally, it finds applications in the production of herbicides and other agrochemical formulations.

2,2,2-trichloroacetic acid requires strict safety measures due to its corrosive nature (Skin Corr. 1A classification). Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume hoods to avoid inhalation. Handle containers carefully to prevent spills and avoid contact with skin, eyes, and clothing. Keep emergency eyewash and safety shower equipment readily accessible during handling operations.

2,2,2-trichloroacetic acid should be stored in tightly sealed, corrosion-resistant containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers away from bases, metals, and reducing agents to prevent dangerous reactions. Store separately from oxidizing agents and organic materials. Ensure storage areas have appropriate spill containment measures and maintain temperatures below 25°C to prevent decomposition. Check container integrity regularly for signs of corrosion.

2,2,2-trichloroacetic acid exposure requires immediate action due to its corrosive properties. For skin contact, immediately flush affected area with copious amounts of water for at least 15 minutes while removing contaminated clothing. For eye contact, rinse continuously with water for at least 15 minutes and seek immediate medical attention. If inhaled, move to fresh air immediately. Do not induce vomiting if swallowed. Seek medical attention promptly for all exposure incidents.

2,2,2-trichloroacetic acid disposal must comply with local and national hazardous waste regulations due to its corrosive and environmentally hazardous properties. Never dispose of this substance down drains or into the environment as it poses acute and chronic aquatic toxicity (Aquatic Acute 1; Aquatic Chronic 1). Contact licensed hazardous waste disposal companies for proper collection and treatment. Small laboratory quantities may require neutralization before disposal following institutional waste management protocols.

2,2,2-trichloroacetic acid is classified under ADR Class 8 (corrosive substances) Packing Group II, indicating moderate danger level for transportation. Packages must bear appropriate hazard labels and markings according to dangerous goods regulations. Use UN-approved packaging designed for corrosive materials and ensure proper documentation including transport documents and emergency response information. Vehicles must carry appropriate safety equipment and drivers require ADR certification for transporting dangerous goods.

2,2,2-trichloroacetic acid is subject to REACH regulation requiring registration for manufacture or import above one tonne per year in the EU. It falls under CLP regulation with mandatory hazard classification as Skin Corr. 1A and aquatic hazards. The substance is not currently listed as SVHC (Substance of Very High Concern). Users must comply with workplace exposure limits, environmental discharge restrictions, and waste disposal regulations. Industrial users may need specific permits depending on quantities and applications.

2,2,2-trichloroacetic acid is available through OYSI, a trusted European distributor of specialty chemicals serving industrial and laboratory customers across Europe. OYSI provides reliable supply chains, technical support, and regulatory compliance assistance for hazardous chemicals. As professional chemical distributors, we ensure proper packaging, documentation, and delivery according to ADR transport regulations. Contact OYSI directly for pricing, availability, and specific grade requirements for your applications.