1,1,1,2,2-pentachloroethane

1,1,1,2,2-pentachloroethane is a chlorinated hydrocarbon with the molecular formula C2HCl5 and CAS number 76-01-7. This chemical compound has a molecular weight of 202.3 g/mol and belongs to the family of polychlorinated ethanes. It is classified as a hazardous substance with carcinogenic properties (Category 2) and potential for specific target organ toxicity following repeated exposure. The compound also presents chronic aquatic toxicity concerns.

1,1,1,2,2-pentachloroethane is a dense, colorless liquid at room temperature with a characteristic sweet, chloroform-like odor. It has low solubility in water but is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound has a high density due to its chlorine content and exhibits low volatility compared to lighter chlorinated compounds. Its chemical stability makes it resistant to hydrolysis under normal conditions.

1,1,1,2,2-pentachloroethane is primarily used as an industrial solvent and chemical intermediate in specialized applications. It serves as a solvent for cleaning and degreasing operations in metal processing industries. The compound is also utilized as an intermediate in the synthesis of other chlorinated chemicals and pharmaceuticals. Due to its hazardous classification and environmental concerns, its use has become increasingly restricted and is limited to specific industrial processes with appropriate safety measures.

1,1,1,2,2-pentachloroethane requires strict safety protocols during handling due to its carcinogenic classification and toxicity. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas. Work should be conducted in fume hoods or with local exhaust ventilation to minimize inhalation exposure. Avoid skin contact and ensure immediate washing if contact occurs. Regular health monitoring is recommended for workers with potential exposure.

1,1,1,2,2-pentachloroethane must be stored in tightly sealed containers made of compatible materials in cool, dry, well-ventilated areas away from heat sources and incompatible substances. Storage areas should be equipped with appropriate containment systems and fire suppression equipment. The compound should be kept away from strong bases, metals, and oxidizing agents. Secondary containment is recommended to prevent environmental contamination in case of leaks or spills.

Immediate action is required following contact with 1,1,1,2,2-pentachloroethane. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If inhaled, move the person to fresh air immediately and seek medical attention. For eye contact, rinse continuously with clean water for at least 15 minutes. In all cases of exposure, seek immediate medical attention and provide the safety data sheet to healthcare providers.

1,1,1,2,2-pentachloroethane disposal must comply with local, national, and international hazardous waste regulations due to its toxic and potentially carcinogenic properties. The compound requires treatment at authorized hazardous waste facilities equipped for chlorinated solvent disposal, typically through high-temperature incineration. Waste containers must be properly labeled and handled by licensed waste management companies. Never dispose of this substance in regular waste streams or sewage systems due to environmental contamination risks.

1,1,1,2,2-pentachloroethane is classified under ADR Class 6.1 (toxic substances) Packing Group II, requiring specialized transport procedures for hazardous materials. Transportation must comply with dangerous goods regulations including proper packaging, labeling with appropriate hazard symbols, and documentation. Vehicles must carry emergency response information and drivers require hazardous materials training. Shipments must use UN-approved packaging and display the required toxic substance markings and environmental hazard symbols.

1,1,1,2,2-pentachloroethane is subject to comprehensive chemical regulations including REACH registration requirements in Europe and CLP classification as Carcinogenic Category 2, STOT RE 1, and Aquatic Chronic 2. The compound requires safety data sheets, appropriate labeling with GHS08 and GHS09 pictograms, and the signal word 'Danger'. Workplace exposure limits apply in most jurisdictions, and environmental release reporting may be mandatory depending on quantities used.

1,1,1,2,2-pentachloroethane is available through specialized chemical distributors in Europe, including OYSI, which supplies industrial chemicals to European markets. Due to its hazardous classification and regulatory requirements, purchase is typically restricted to qualified industrial users with appropriate safety infrastructure and regulatory compliance. Buyers must demonstrate legitimate industrial use and proper handling capabilities. Contact OYSI for availability, regulatory documentation, and technical support for this specialized chemical product.