Piperazine

Piperazine is an organic chemical compound with the molecular formula C4H10N2 and CAS number 110-85-0. It is a heterocyclic diamine featuring a six-membered ring containing two nitrogen atoms in opposite positions. With a molecular weight of 86.14 g/mol, piperazine serves as an important building block in pharmaceutical and chemical synthesis. The compound is classified as hazardous due to its corrosive properties and potential for causing respiratory and skin sensitization.

Piperazine is typically found as white crystalline flakes or powder at room temperature. It exhibits high water solubility and has a characteristic amine-like odor. The compound is hygroscopic, meaning it readily absorbs moisture from air. It has a melting point around 106°C and is soluble in water, ethanol, and other polar solvents. Piperazine demonstrates basic properties due to its two nitrogen atoms, forming salts with acids.

Piperazine is primarily used as an intermediate in pharmaceutical manufacturing, particularly in the synthesis of antihistamines, antipsychotics, and antiparasitic medications. It serves as a building block for various drug compounds and pharmaceutical APIs. Additionally, piperazine finds applications in the production of polyamides, epoxy hardeners, and corrosion inhibitors. The chemical industry also utilizes it in manufacturing specialty chemicals and as a curing agent for certain polymer systems.

Piperazine requires careful handling due to its corrosive nature and sensitization potential. Workers must wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection to prevent inhalation. Ensure adequate ventilation in work areas and avoid direct skin contact. Handle in well-ventilated areas or under fume hoods. Emergency eyewash stations and safety showers should be readily accessible. Training on proper handling procedures is essential for all personnel working with this substance.

Piperazine should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers protected from moisture due to its hygroscopic nature. Store away from incompatible materials such as strong acids, oxidizing agents, and organic peroxides. Maintain storage temperatures below 25°C when possible. Ensure storage areas have appropriate spill containment measures and are accessible only to trained personnel. Regular container inspection is recommended.

Piperazine contact requires immediate action due to its corrosive properties. For skin contact, immediately remove contaminated clothing and flush affected area with plenty of water for at least 15 minutes. In case of eye contact, rinse thoroughly with water for at least 15 minutes and seek immediate medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical care. Always consult a physician after any significant exposure incident.

Piperazine disposal must comply with local and national waste regulations as it is classified as hazardous waste. The substance cannot be disposed of in regular waste streams or sewage systems. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities may be neutralized under controlled conditions before disposal, but this should only be performed by qualified professionals. Maintain proper documentation of all disposal activities. Never attempt to dispose of piperazine through standard waste channels.

Piperazine is classified under ADR as Class 8 (corrosive substances), Packing Group III. Transportation requires appropriate hazardous goods packaging, labeling, and documentation according to ADR regulations. Packages must display the corrosive hazard label and proper shipping name. Only authorized carriers with hazardous goods training and certification should handle transportation. Ensure all transport documentation includes safety data sheets and emergency response information. Vehicle placarding and driver certification are mandatory for road transport.

Piperazine is subject to various European regulations including REACH and CLP classifications. Under CLP, it is classified as Reproductive toxicity Category 2, Skin Corrosion 1B, and Respiratory/Skin Sensitizer Category 1, requiring appropriate labeling with GHS pictograms GHS08 and GHS05. The substance requires registration under REACH regulation. Users must comply with occupational exposure limits and workplace safety regulations. Import/export may require specific permits depending on destination and intended use applications.

Piperazine is available through OYSI, a specialized European distributor of technical chemicals. OYSI supplies high-quality piperazine to pharmaceutical, chemical, and industrial customers across Europe with proper documentation and regulatory compliance. As a professional chemical distributor, OYSI ensures product quality, proper packaging, and adherence to transportation regulations. Contact OYSI directly for availability, technical specifications, and pricing information. Other specialized chemical suppliers may also offer piperazine, but ensure they provide proper safety documentation and regulatory compliance.