1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene is a highly chlorinated cyclic organic compound with the molecular formula C5Cl6 and CAS number 77-47-4. This substance has a molecular weight of 272.8 g/mol and belongs to the family of chlorinated cyclopentadienes. It is classified as a highly toxic substance with corrosive properties and significant environmental hazards, requiring careful handling and specialized safety measures in industrial applications.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene is a chlorinated organic compound that typically appears as a solid or viscous liquid at room temperature. Due to its high chlorine content and cyclic structure, it exhibits low volatility and limited water solubility. The substance is chemically stable under normal conditions but can decompose under extreme heat, releasing toxic chlorinated compounds. Its high molecular weight of 272.8 g/mol and dense chlorination contribute to its persistence in the environment.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene is primarily used as a chemical intermediate in specialized industrial processes and research applications. Its highly chlorinated structure makes it valuable in the synthesis of other chlorinated compounds and as a reagent in specific chemical reactions. Due to its toxic and corrosive nature, its use is restricted to professional industrial settings with appropriate safety infrastructure and trained personnel capable of handling hazardous materials safely.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene requires maximum protection due to its acute toxicity and corrosive properties. Essential PPE includes full chemical-resistant suits, supplied-air respiratory protection, and chemically resistant gloves and boots. Work must be conducted in well-ventilated areas or fume hoods with emergency eyewash and shower stations nearby. Only trained personnel should handle this substance, following strict protocols to prevent skin contact, inhalation, or ingestion. Emergency response procedures must be readily available.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene must be stored in a cool, dry, well-ventilated area away from heat sources, incompatible materials, and direct sunlight. Use only approved containers resistant to chemical corrosion and ensure proper secondary containment. Storage areas should be equipped with spill control measures and restricted to authorized personnel only. Keep away from strong bases, metals, and oxidizing agents. Regular container inspection is essential to prevent leaks, and storage must comply with local hazardous material regulations.

Immediate action is critical due to the substance's acute toxicity and corrosive nature. For skin contact, remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. If inhaled, move to fresh air immediately and provide respiratory support if needed. For eye contact, flush with water for at least 15 minutes. Seek immediate medical attention in all exposure cases. Do not induce vomiting if ingested. Emergency responders should be informed of the specific chemical involved and its hazardous properties.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene must be disposed of as hazardous waste through licensed hazardous waste management facilities. Due to its toxic and environmentally harmful properties, it cannot be disposed of in regular waste streams or sewerage systems. Disposal must comply with local, national, and EU waste regulations including the Waste Framework Directive. Incineration at high temperatures in specialized facilities equipped with appropriate emission controls is typically required. Consult with certified waste management professionals for proper disposal procedures.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene is classified under ADR Class 6.1, Packing Group I, indicating it is a highly toxic substance requiring maximum transport precautions. Transportation must comply with dangerous goods regulations using UN-approved packaging and labeling. Vehicles must carry appropriate emergency equipment and documentation. Only certified dangerous goods transporters should handle shipment. Proper shipping names, hazard labels, and emergency response information must accompany all shipments to ensure safe handling throughout the transport chain.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene is subject to comprehensive EU chemical regulations including REACH registration and CLP classification requirements. Its classification as Acute Tox. 2-4, Skin Corr. 1B, and Aquatic Acute/Chronic 1 triggers strict labeling, safety data sheet, and handling requirements. While not currently listed as an SVHC, its hazardous properties subject it to workplace exposure limits, environmental discharge controls, and waste management regulations. Users must ensure compliance with occupational health and safety directives.

1,2,3,4,5,5-hexachlorocyclopenta-1,3-diene is available through OYSI, a specialized European distributor of technical chemicals. As a highly regulated hazardous substance, procurement requires verification of legitimate industrial use and appropriate handling capabilities. OYSI ensures full regulatory compliance including proper documentation, safety data sheets, and transport arrangements meeting ADR requirements. Due to the substance's hazardous nature, sales are restricted to qualified industrial users with demonstrated expertise in handling toxic and corrosive materials safely.