1,2-bis(ethenyl)benzene

1,2-bis(ethenyl)benzene is an aromatic organic compound with the molecular formula C10H10 and a molecular weight of 130.19 g/mol. Also known as 1,2-divinylbenzene, this compound features a benzene ring with two vinyl groups attached at adjacent positions. It belongs to the family of divinylbenzenes and serves as an important chemical intermediate in various industrial applications, particularly in polymer chemistry and materials science.

1,2-bis(ethenyl)benzene is typically a colorless to pale yellow liquid at room temperature with a characteristic aromatic odor. The compound has limited solubility in water but is readily soluble in most organic solvents including alcohols, ethers, and hydrocarbons. Its vinyl groups make it highly reactive and prone to polymerization, especially under heat or in the presence of catalysts or initiators.

1,2-bis(ethenyl)benzene is primarily used as a cross-linking agent in polymer production, particularly for creating ion-exchange resins and specialized plastics. It serves as a monomer in copolymerization reactions to produce materials with enhanced mechanical properties and chemical resistance. The compound is also utilized in the synthesis of specialty polymers for electronic applications, adhesives, and coating formulations where cross-linked structures are required.

1,2-bis(ethenyl)benzene should be handled with standard chemical safety precautions including wearing appropriate personal protective equipment such as chemical-resistant gloves, safety goggles, and lab coats. Work should be conducted in well-ventilated areas or under fume hoods to minimize inhalation exposure. Avoid contact with heat sources, sparks, or strong oxidizing agents as the compound can undergo polymerization reactions. Always use proper grounding procedures when transferring the material.

1,2-bis(ethenyl)benzene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources. The storage area should be kept below 25°C to prevent unwanted polymerization. Keep away from strong oxidizing agents, acids, and bases. Containers should be made of compatible materials and properly labeled. Storage areas should be equipped with appropriate fire suppression systems.

In case of skin contact with 1,2-bis(ethenyl)benzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15-20 minutes while holding eyelids open. If inhaled, move the person to fresh air immediately. Remove from exposure and rest in a position comfortable for breathing. Seek medical attention if irritation persists or if large amounts were involved.

1,2-bis(ethenyl)benzene must be disposed of in accordance with local, national, and international waste regulations as a chemical waste. The substance should not be released into drains, soil, or waterways. Disposal should be carried out through licensed waste management companies capable of handling organic chemical wastes. Small quantities may be suitable for incineration at appropriate high-temperature facilities. Always consult current waste disposal regulations before disposal.

1,2-bis(ethenyl)benzene is classified under ADR Class 4.1 (Flammable solids), Packing Group III for transportation purposes. This classification indicates it should be transported as a flammable solid with moderate danger level. Appropriate packaging, labeling, and documentation according to ADR regulations are required. Transport vehicles must comply with ADR requirements for Class 4.1 substances, and drivers need proper training and certification for hazardous materials transport.

1,2-bis(ethenyl)benzene is subject to standard chemical regulations including REACH registration requirements in the European Union for commercial use. The substance is not classified as a Substance of Very High Concern (SVHC) and currently has no specific GHS hazard classifications or signal words assigned. However, users must comply with general chemical safety regulations, workplace exposure limits, and environmental protection requirements applicable in their jurisdiction.

1,2-bis(ethenyl)benzene is available through OYSI, a specialized European distributor of technical chemicals serving industrial and professional customers across Europe. OYSI provides reliable supply chains and technical support for chemical procurement needs. For purchasing information, availability, and technical specifications, contact OYSI directly through their official channels. Other chemical suppliers and distributors may also offer this compound for industrial applications.