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 causing specific target organ toxicity through repeated exposure. The substance also poses environmental concerns due to its chronic aquatic toxicity.

1,1,1,2,2-pentachloroethane is typically a colorless to pale yellow liquid at room temperature with a characteristic sweet, chloroform-like odor. As a highly chlorinated compound, it has a high density and is practically insoluble in water but soluble in organic solvents such as alcohols, ethers, and other chlorinated solvents. The substance is non-flammable due to its high chlorine content and exhibits good chemical stability under normal conditions.

1,1,1,2,2-pentachloroethane is primarily used as a chemical intermediate in the synthesis of other chlorinated compounds and as a specialized solvent in industrial applications. It serves as a precursor in the production of refrigerants and other fluorinated chemicals. The substance may also be used in metal cleaning operations, degreasing processes, and as an extraction solvent in specific analytical procedures. However, its use has become increasingly restricted due to health and environmental concerns.

1,1,1,2,2-pentachloroethane requires careful handling with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection when ventilation is inadequate. Work should be conducted in well-ventilated areas or under fume hoods to minimize inhalation exposure. Avoid skin and eye contact, and prevent vapor accumulation in work areas. Due to its carcinogenic classification (Category 2), minimize exposure time and follow strict hygiene practices including thorough handwashing after handling.

1,1,1,2,2-pentachloroethane should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers in secondary containment to prevent environmental release in case of leakage. Store separately from strong bases, metals, and incompatible materials. Ensure storage areas are equipped with appropriate spill control measures and maintain temperatures within recommended ranges to prevent container integrity issues.

In case of skin contact with 1,1,1,2,2-pentachloroethane, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15 minutes while holding eyelids open. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. In all cases of significant exposure, obtain prompt medical evaluation due to the substance's toxic properties.

1,1,1,2,2-pentachloroethane must be disposed of as hazardous waste through licensed waste management facilities specialized in handling chlorinated solvents. The substance requires incineration at high temperatures in approved facilities equipped with appropriate emission control systems. Never dispose of this chemical down drains, into soil, or with regular waste. Consult local environmental regulations and waste disposal authorities for specific requirements, as disposal methods may vary by jurisdiction within Europe.

1,1,1,2,2-pentachloroethane is classified as ADR Class 6.1 (toxic substances), Packing Group II, requiring specialized transport procedures for dangerous goods. Transportation must comply with ADR regulations including appropriate packaging, labeling with toxic hazard symbols, and documentation. Vehicles must carry proper emergency equipment and drivers require dangerous goods training certification. Shipments must be accompanied by transport documents specifying the substance's hazard classification and emergency response information.

1,1,1,2,2-pentachloroethane is subject to comprehensive European regulations including REACH registration requirements and CLP classification as Carcinogenic Category 2, STOT RE 1, and Aquatic Chronic 2. The substance carries GHS pictograms GHS08 and GHS09 with the signal word 'Danger'. Users must comply with occupational exposure limits, implement appropriate risk management measures, and follow safety data sheet requirements. Additional restrictions may apply under national legislation regarding carcinogenic substances in workplace environments.

1,1,1,2,2-pentachloroethane is available through OYSI, a specialized European distributor of technical chemicals and laboratory reagents. As an established supplier, OYSI ensures compliance with European chemical regulations including REACH and CLP requirements. The company provides proper documentation, safety data sheets, and technical support for industrial customers requiring this specialized chemical. Contact OYSI directly for availability, specifications, and regulatory compliance documentation specific to your application requirements.