Cyclopentane

Cyclopentane is a cyclic saturated hydrocarbon with the molecular formula C5H10 and CAS number 287-92-3. It consists of five carbon atoms arranged in a ring structure, each bonded to two hydrogen atoms. With a molecular weight of 70.13 g/mol, cyclopentane belongs to the cycloalkane family and is classified as a flammable liquid requiring careful handling due to its fire hazard properties.

Cyclopentane is a colorless liquid at room temperature with a characteristic petroleum-like odor. It has a boiling point of approximately 49°C and is practically insoluble in water due to its nonpolar nature. The compound exhibits low viscosity and high volatility, making it easily evaporable. Its density is lower than water, and it readily dissolves in organic solvents such as alcohols and ethers.

Cyclopentane is primarily used as a blowing agent in the production of polyurethane foams, particularly for insulation applications in refrigerators and construction materials. It serves as an eco-friendly alternative to CFCs and HCFCs. Additionally, cyclopentane finds application as a solvent in laboratory settings, as a component in specialized cleaning formulations, and as an intermediate in organic synthesis processes.

Cyclopentane requires careful handling due to its high flammability (Flam. Liq. 2). Always wear appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and flame-resistant clothing. Work in well-ventilated areas away from ignition sources, hot surfaces, and electrical equipment. Use grounded containers and anti-static equipment to prevent static electricity buildup. Keep fire extinguishing equipment readily available during handling operations.

Cyclopentane must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Use only approved containers made of compatible materials and ensure proper grounding to prevent static buildup. Storage areas should be equipped with appropriate fire suppression systems and maintained below 25°C. Keep containers tightly closed and separate from oxidizing agents and other incompatible substances.

In case of skin contact with cyclopentane, immediately 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 if breathing difficulties occur. For eye contact, rinse immediately with plenty of water for 15 minutes and consult a physician. Never induce vomiting if ingested.

Cyclopentane waste must be disposed of according to local and national hazardous waste regulations. Contact licensed waste disposal companies specialized in flammable liquids for proper collection and treatment. Never pour cyclopentane down drains or into the environment. Small quantities may be recovered through distillation for reuse, while contaminated materials require incineration at approved high-temperature facilities with proper emission controls.

Cyclopentane is classified under ADR Class 3 (flammable liquids), Packing Group II, requiring specialized transport procedures. Packages must bear proper hazard labels including the GHS02 flame pictogram and 'Danger' signal word. Use UN-approved containers and ensure proper documentation accompanies shipments. Transport vehicles must be equipped with appropriate fire extinguishing equipment and drivers must hold valid ADR certification for dangerous goods transport.

Cyclopentane is regulated under the CLP Regulation as a flammable liquid (Flam. Liq. 2) and aquatic chronic toxicant (Aquatic Chronic 3), requiring appropriate labeling with GHS02 pictogram and 'Danger' signal word. It falls under REACH registration requirements for manufacturers and importers. The substance is not classified as SVHC (Substance of Very High Concern) and has no current restrictions under REACH Annex XVII.

Cyclopentane is available through OYSI, a trusted European distributor of chemical products serving industrial customers across the continent. OYSI provides high-quality cyclopentane with proper documentation, safety data sheets, and regulatory compliance support. As a specialized chemical distributor, OYSI ensures reliable supply chains and technical expertise to support your industrial applications and safety requirements throughout Europe.