2-chlorobuta-1,3-diene

2-chlorobuta-1,3-diene is a chlorinated organic compound with the molecular formula C4H5Cl and CAS number 126-99-8. This chemical substance has a molecular weight of 88.53 g/mol and belongs to the family of chlorinated dienes. It is classified as a highly hazardous substance with multiple danger classifications including flammability, carcinogenicity, and toxicity properties that require careful handling in industrial applications.

2-chlorobuta-1,3-diene is a volatile liquid at room temperature with characteristic properties typical of chlorinated organic compounds. As a diene compound, it contains two carbon-carbon double bonds making it reactive and prone to polymerization. The presence of chlorine affects its polarity and reactivity. Due to its volatile nature and chemical structure, it requires controlled storage conditions to prevent degradation and maintain stability.

2-chlorobuta-1,3-diene is primarily used as an intermediate in organic synthesis and polymer production. Its diene structure makes it valuable for polymerization reactions and as a building block for manufacturing specialty chemicals. Industrial applications include the production of synthetic rubber, adhesives, and other polymer-based materials. However, due to its carcinogenic classification (Carc. 1B), its use is strictly regulated and limited to controlled industrial processes.

2-chlorobuta-1,3-diene requires extensive safety precautions due to its multiple hazard classifications. Personal protective equipment must include chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas. Work should be conducted in fume hoods or controlled atmospheres to prevent inhalation exposure. Given its carcinogenic properties and acute toxicity, only trained personnel should handle this substance following strict safety protocols and workplace exposure limits.

2-chlorobuta-1,3-diene must be stored in a cool, dry, well-ventilated area away from heat sources and ignition due to its Flam. Liq. 2 classification. Storage containers should be tightly sealed to prevent vapor release and contamination. The substance should be kept away from incompatible materials and stored in areas with appropriate fire suppression systems. Temperature control is essential to prevent degradation and maintain product stability.

2-chlorobuta-1,3-diene contact requires immediate emergency response due to its toxicity and irritant properties. For skin contact, remove contaminated clothing and rinse affected areas with plenty of water for at least 15 minutes. In case of eye contact, flush immediately with water and seek medical attention. If inhaled, move to fresh air immediately. Due to its acute toxicity classification, medical evaluation is recommended for any significant exposure incident.

2-chlorobuta-1,3-diene disposal must comply with hazardous waste regulations due to its carcinogenic and toxic properties. The substance cannot be disposed of through normal waste streams and requires specialized hazardous waste treatment facilities. Disposal must follow local and EU waste regulations, including proper classification, labeling, and documentation. Only authorized waste management companies should handle the disposal process to ensure environmental protection and regulatory compliance.

2-chlorobuta-1,3-diene is classified under ADR Class 3 (flammable liquids), Packing Group I, indicating high danger level for transportation. Transport requires specialized packaging, labeling with appropriate hazard pictogrammes (GHS02, GHS08, GHS07), and proper documentation. Vehicles must comply with ADR regulations for Class 3 substances, including appropriate safety equipment and driver certification. Only authorized carriers experienced in hazardous materials transport should handle shipments.

2-chlorobuta-1,3-diene is subject to extensive European regulations including REACH registration requirements and CLP classification obligations. Its carcinogenic classification (Carc. 1B) places it under strict workplace exposure limits and usage restrictions. The substance requires safety data sheets, hazard communication, and worker protection measures. Companies handling this chemical must comply with occupational health regulations and may need specific authorizations depending on intended use and quantities.

2-chlorobuta-1,3-diene is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemical products to industrial customers. Due to its hazardous nature and regulatory requirements, procurement is typically limited to qualified industrial users with appropriate handling facilities and safety protocols. Suppliers must ensure proper documentation, safety data sheets, and compliance with transportation and storage requirements for this controlled substance.