Cyclohexene

Cyclohexene is an unsaturated cyclic hydrocarbon with the molecular formula C6H10 and CAS number 110-83-8. It features a six-membered carbon ring containing one double bond, making it a cycloalkene. With a molecular weight of 82.14 g/mol, cyclohexene is an important intermediate in organic chemistry and industrial processes. Its unsaturated nature makes it highly reactive and useful for various chemical transformations and synthesis reactions.

Cyclohexene is a colorless liquid at room temperature with a characteristic sweet, petroleum-like odor. It has a boiling point of approximately 83°C and a density of about 0.81 g/cm³. The compound is highly flammable and practically insoluble in water but miscible with most organic solvents including alcohols, ethers, and hydrocarbons. Its unsaturated structure contributes to its reactivity and tendency to polymerize under certain conditions.

Cyclohexene serves as an important intermediate in organic synthesis and chemical manufacturing. It is primarily used in the production of cyclohexanol and cyclohexanone through oxidation reactions. The compound is also utilized in polymer chemistry, pharmaceutical synthesis, and as a starting material for various specialty chemicals. Additionally, cyclohexene finds applications in research laboratories as a reagent for organic reactions and as a solvent in certain chemical processes.

Cyclohexene requires careful handling due to its flammable nature and potential health hazards. Use appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume hoods to avoid vapor inhalation. Keep away from heat sources, sparks, and open flames. Use non-sparking tools and ensure proper grounding of equipment to prevent static electricity buildup during transfer operations.

Cyclohexene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and ignition points. Keep containers in a fire-resistant storage area with appropriate fire suppression systems. Store away from strong oxidizing agents and acids to prevent unwanted reactions. Use containers made of compatible materials such as stainless steel or appropriate plastics. Implement proper inventory rotation and regularly inspect containers for leaks or deterioration.

In case of skin contact with cyclohexene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush eyes with clean water for at least 15 minutes and seek medical attention. For inhalation exposure, move the person to fresh air immediately. If ingestion occurs, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific first aid measures.

Cyclohexene must be disposed of according to local and national hazardous waste regulations. Do not pour down drains or release into the environment. Contact licensed hazardous waste disposal companies for proper collection and treatment. Small quantities can often be recovered through distillation for reuse. Contaminated materials should also be treated as hazardous waste. Always consult local environmental authorities for specific disposal requirements and approved disposal facilities in your area.

Cyclohexene is classified under ADR Class 3 (flammable liquids), Packing Group II, requiring specific transport regulations. Use UN-approved packaging and properly labeled containers with appropriate hazard markings. Transport vehicles must comply with ADR requirements including proper ventilation and fire safety equipment. Only use authorized carriers trained in hazardous materials transport. Ensure proper documentation including transport documents and emergency response information accompanies all shipments.

Cyclohexene is subject to standard chemical regulations under REACH and CLP in Europe, requiring registration and appropriate classification. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with general chemical safety requirements. Users must follow occupational health and safety regulations for flammable substances. Transport is regulated under ADR as a Class 3 dangerous good. Always check current regulatory status as requirements may change over time.

Cyclohexene is available through OYSI, a specialized European distributor of technical chemicals serving industrial and professional customers across Europe. OYSI provides quality cyclohexene with proper documentation and regulatory compliance for various applications. Professional chemical distributors typically offer different grades and packaging options to meet specific industrial requirements. Contact OYSI directly for availability, specifications, and technical support for your cyclohexene needs in European markets.