1,2-dichloroethene

1,2-dichloroethene is an organochlorine compound with the molecular formula C2H2Cl2 and CAS number 540-59-0. This chemical substance has a molecular weight of 96.94 g/mol and exists as two isomeric forms: cis and trans configurations. It belongs to the family of chlorinated alkenes and is classified as a hazardous substance under GHS regulations with danger signal word, requiring careful handling and storage procedures.

1,2-dichloroethene is a colorless liquid at room temperature with a characteristic sweet, chloroform-like odor. The substance has moderate volatility and low water solubility but dissolves well in organic solvents such as alcohols and ethers. Its density is higher than water, and it exhibits flammable properties. The compound can exist in two geometric isomeric forms with slightly different physical properties.

1,2-dichloroethene is primarily used as an intermediate in chemical synthesis and manufacturing processes. The compound serves as a building block for producing other chlorinated compounds and specialty chemicals. It finds applications in the pharmaceutical industry for synthesizing active ingredients and in the production of certain polymers. The substance is also utilized in research and development activities within chemical laboratories for various synthetic pathways.

1,2-dichloroethene requires careful handling due to its flammable and toxic properties. Personal protective equipment including chemical-resistant gloves, safety goggles, and appropriate respiratory protection must be worn. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Eliminate all ignition sources as the substance is classified as Flammable Liquid Category 2, and ensure proper grounding of equipment to prevent static discharge.

1,2-dichloroethene must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and ignition points. The storage area should be equipped with appropriate fire suppression systems and maintained at temperatures below 25°C. Keep containers away from incompatible materials such as strong oxidizers and bases. Storage facilities must comply with local fire codes and chemical storage regulations for flammable liquids.

In case of skin contact with 1,2-dichloroethene, immediately remove contaminated clothing and wash the affected area with plenty of soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15-20 minutes and seek medical attention. If inhaled, move the person to fresh air and seek medical assistance if breathing difficulties occur. In case of ingestion, do not induce vomiting and seek immediate medical attention.

1,2-dichloroethene must be disposed of through licensed hazardous waste disposal facilities in accordance with local and European waste regulations. The substance cannot be disposed of in regular waste streams or sewers due to its hazardous classification. Contact certified waste management companies that specialize in handling flammable and toxic chemicals. Ensure proper documentation and waste tracking throughout the disposal process as required by applicable environmental regulations.

1,2-dichloroethene is classified under ADR transport regulations as Class 3 (Flammable Liquids), Packing Group II, indicating moderate danger level. Transportation must comply with ADR requirements including proper packaging, labeling with appropriate hazard symbols, and documentation. Vehicles must be equipped with appropriate safety equipment and drivers require ADR certification. Packaging must meet UN specification standards and display the correct shipping name and identification numbers.

1,2-dichloroethene is subject to various European chemical regulations including REACH registration requirements and CLP classification standards. The substance is classified with hazard classes including Flammable Liquid 2, Acute Toxicity 4, and Aquatic Chronic 3, requiring appropriate labeling with GHS02 and GHS07 pictograms. While not currently listed as an SVHC substance, it must comply with occupational exposure limits and environmental discharge restrictions in industrial applications.

1,2-dichloroethene is available through OYSI, a European distributor specializing in technical chemicals and industrial raw materials. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. As an established chemical distributor, OYSI ensures product quality and can assist with technical specifications, handling guidelines, and regulatory requirements for professional and industrial customers throughout European markets.