(E)-but-2-ene

(E)-but-2-ene is an alkene hydrocarbon with the molecular formula C4H8 and CAS number 107-01-7. It is the trans isomer of but-2-ene, characterized by a double bond between the second and third carbon atoms. This geometric isomer has the two methyl groups positioned on opposite sides of the double bond, making it more stable than its cis counterpart. With a molecular weight of 56.11 g/mol, it belongs to the family of unsaturated hydrocarbons.

(E)-but-2-ene is a colorless gas at room temperature with a characteristic sweet odor typical of alkenes. It has a boiling point of approximately 0.9°C and is practically insoluble in water but readily soluble in organic solvents like alcohols and ethers. The compound exists as a gas under normal conditions and can be liquefied under pressure. Its density is lower than water, and it exhibits typical alkene reactivity due to the presence of the C=C double bond.

(E)-but-2-ene is primarily used as a chemical intermediate in organic synthesis and polymer production. It serves as a feedstock for manufacturing various chemicals including butylene oxide, methyl ethyl ketone, and other specialty chemicals. The compound is also utilized in the production of synthetic rubbers and plastics. Additionally, it finds applications in research laboratories as a reagent for organic synthesis reactions, particularly in alkene chemistry studies and as a starting material for more complex molecular structures.

(E)-but-2-ene requires careful handling due to its flammable nature as a hydrocarbon gas. Workers should wear appropriate personal protective equipment including safety glasses, protective gloves, and flame-resistant clothing. Ensure adequate ventilation in work areas and eliminate all ignition sources. Use only explosion-proof electrical equipment and tools. Ground and bond all containers during transfer operations. Avoid breathing vapors and prevent accumulation in confined spaces. Regular monitoring for gas leaks is essential for safe operations.

(E)-but-2-ene should be stored in properly designed pressure vessels in cool, dry, well-ventilated areas away from heat sources and ignition points. Storage areas must be equipped with appropriate fire suppression systems and gas detection equipment. Keep containers tightly closed and avoid exposure to direct sunlight. Store away from strong oxidizing agents and incompatible materials. Ensure storage facilities comply with local regulations for flammable gas storage and maintain proper inventory management to prevent prolonged storage.

(E)-but-2-ene exposure requires immediate attention depending on the route of contact. For inhalation, move the affected person to fresh air immediately and seek medical attention if breathing difficulties occur. In case of skin contact with liquid form, remove contaminated clothing and flush the affected area with plenty of water. For eye contact, rinse thoroughly with water for at least 15 minutes. If large amounts are inhaled or if symptoms persist, seek immediate medical attention and provide safety data sheet information to medical personnel.

(E)-but-2-ene disposal must comply with local and national environmental regulations for hazardous waste management. The compound should never be released directly into the atmosphere or sewage systems. Preferred disposal methods include controlled incineration at licensed facilities or recovery for recycling when possible. Small quantities can be allowed to evaporate in well-ventilated areas away from ignition sources, following local regulations. Always consult with certified waste disposal companies and maintain proper documentation for regulatory compliance.

(E)-but-2-ene is classified as ADR Class 2 (gases) for transportation purposes, requiring compliance with specific packaging and labeling requirements. Transportation must be conducted using appropriate pressure vessels designed for gas transport, with proper hazard labeling and documentation. Vehicles should be equipped with appropriate safety equipment and drivers must have proper training and certification. Ensure compliance with international transport regulations including ADR/RID for road/rail transport and IMDG for maritime transport.

(E)-but-2-ene is subject to standard chemical regulations including REACH registration requirements in the European Union. The substance is not classified as a Substance of Very High Concern (SVHC) and does not carry specific GHS hazard classifications beyond standard handling precautions for flammable gases. Companies must ensure compliance with local industrial emissions regulations and workplace safety standards. Regular review of regulatory updates is recommended as classification and restrictions may change based on new scientific data.

(E)-but-2-ene is available through specialized chemical distributors across Europe, including OYSI, a reliable European distributor of technical chemicals. OYSI provides quality chemical products with proper documentation and regulatory compliance support. When sourcing this compound, ensure the supplier provides appropriate safety data sheets, certificates of analysis, and proper packaging suitable for your specific application requirements. Consider factors such as purity grades, packaging sizes, and delivery logistics when selecting your supplier.