Ethene

Ethene is the simplest alkene hydrocarbon with the molecular formula C2H4 and CAS number 74-85-1. It is a colorless, flammable gas consisting of two carbon atoms connected by a double bond with two hydrogen atoms attached to each carbon. With a molecular weight of 28.05 g/mol, ethene is one of the most important petrochemical building blocks in industrial chemistry and serves as a fundamental raw material for polymer production.

Ethene is a colorless gas at room temperature with a slightly sweet odor. It has a boiling point of -103.8°C and a melting point of -169.2°C. The compound is slightly soluble in water but readily soluble in organic solvents like ethanol and ether. Ethene is lighter than air with a density of 1.178 kg/m³ at standard conditions and exhibits high reactivity due to its carbon-carbon double bond.

Ethene is primarily used as a raw material for producing polyethylene, the world's most widely used plastic. It serves as a key building block for manufacturing ethylene oxide, ethylene glycol, styrene, and vinyl chloride. In the chemical industry, ethene is essential for producing synthetic fibers, adhesives, and various petrochemicals. Additionally, it functions as a natural plant hormone regulating fruit ripening and is used in controlled agricultural applications.

Ethene requires careful handling due to its flammable gas classification (Flam. Gas 1) and pressurized gas nature. Personnel must wear appropriate respiratory protection and safety glasses, while ensuring adequate ventilation in work areas. All ignition sources must be eliminated, and only explosion-proof electrical equipment should be used. Gas detection systems are recommended, and emergency procedures should be established for potential leaks or exposure incidents.

Ethene must be stored in appropriate pressure vessels designed for compressed gases, away from heat sources, ignition sources, and direct sunlight. Storage areas require adequate ventilation and temperature control to prevent pressure buildup. The gas should be kept separate from oxidizing agents and incompatible materials. Regular inspection of storage containers and pressure relief systems is essential to maintain safe storage conditions and prevent accidents.

Ethene exposure primarily occurs through inhalation, which may cause specific target organ toxicity (STOT SE 3). In case of inhalation, immediately move the affected person to fresh air and keep them at rest. If breathing difficulties occur, provide oxygen and seek immediate medical attention. For skin or eye contact during handling of pressurized gas, treat for cold burns and flush with water. Always consult medical professionals for proper evaluation and treatment.

Ethene disposal must comply with local and national waste regulations as a flammable gas. Small quantities can be safely vented in well-ventilated areas away from ignition sources, while larger amounts require professional waste management services. Pressurized containers should never be punctured or incinerated. Contact licensed waste disposal companies experienced in handling flammable gases to ensure proper disposal according to environmental and safety regulations.

Ethene is classified as ADR Class 2 dangerous goods for transport purposes. It must be shipped in approved pressure vessels meeting relevant transportation standards and properly labeled with appropriate hazard markings. Vehicles transporting ethene require ADR certification and must follow designated routes. Proper documentation, including transport documents and emergency response information, must accompany shipments to ensure compliance with international transport regulations.

Ethene is regulated under various European frameworks including CLP regulation for classification and labeling, requiring GHS02, GHS04, and GHS07 pictograms with 'Danger' signal word. It falls under REACH registration requirements for chemical substances. The compound is not listed as a Substance of Very High Concern (SVHC). Industrial users must comply with workplace safety regulations and may need permits for storage and handling of significant quantities.

Ethene is available through OYSI, a professional European distributor of technical chemicals serving industrial customers across the continent. OYSI provides high-quality ethene with proper documentation, safety data sheets, and regulatory compliance support. As a specialized chemical distributor, OYSI ensures reliable supply chains and technical expertise for customers requiring ethene for industrial applications, polymer production, and chemical synthesis processes throughout Europe.