1,1-dichloroethene

1,1-dichloroethene is an organochlorine compound with the molecular formula C2H2Cl2 and CAS number 75-35-4. This chemical substance has a molecular weight of 96.94 g/mol and belongs to the dichloroethene family. It is classified as extremely hazardous due to its carcinogenic, mutagenic, and acute toxic properties. The compound is highly flammable and poses significant health risks including potential organ damage from repeated exposure.

1,1-dichloroethene is a colorless liquid at room temperature with a characteristic sweet, ether-like odor. The compound has low water solubility but is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. It exhibits high volatility with a low boiling point, making vapor formation readily possible at ambient conditions. The substance demonstrates excellent solvent properties for various organic materials and polymers.

1,1-dichloroethene is primarily used as an intermediate in chemical synthesis and as a precursor for producing vinylidene chloride polymers and copolymers. The compound serves as a solvent in specialized industrial applications and plays a role in manufacturing certain plastics and synthetic materials. It is also utilized in laboratory settings for specific analytical procedures and research applications, though its use is strictly controlled due to safety concerns.

1,1-dichloroethene must be handled with extreme caution using appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent vapor inhalation. Avoid all ignition sources as the substance is highly flammable. Only trained personnel should handle this material, following strict safety protocols and emergency procedures due to its carcinogenic and acute toxic properties.

1,1-dichloroethene must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat, sparks, and open flames. The storage area should be equipped with appropriate fire suppression systems and maintained below 25°C. Keep containers away from incompatible materials such as strong oxidizers, bases, and metals. Storage facilities must comply with local regulations for flammable and carcinogenic substances, with restricted access for authorized personnel only.

Immediate medical attention is required for any exposure to 1,1-dichloroethene due to its acute toxicity. For skin contact, remove contaminated clothing and wash affected areas thoroughly with soap and water for at least 15 minutes. If inhaled, move the person to fresh air immediately and provide oxygen if breathing is difficult. For eye contact, flush with clean water for at least 15 minutes. Never induce vomiting if ingested and seek emergency medical care immediately.

1,1-dichloroethene must be disposed of as hazardous waste through licensed waste management companies specializing in halogenated organic compounds. The substance cannot be disposed of in regular waste streams or poured down drains due to its environmental and health hazards. Disposal must comply with local and European waste regulations, including proper classification, documentation, and tracking. Incineration at high temperatures in specialized facilities is typically the preferred disposal method.

1,1-dichloroethene is classified under ADR as Class 3 dangerous goods (flammable liquids) in Packing Group I, indicating the highest level of danger. Transportation requires specialized containers meeting UN specification requirements and proper hazard labeling including flammable liquid markings. Vehicles must be equipped with appropriate safety equipment and drivers must hold ADR certification. Transport documentation must include proper shipping names, hazard classes, and emergency response information.

1,1-dichloroethene is subject to strict European regulations under REACH and CLP due to its classification as a Category 1B carcinogen and highly toxic substance. The compound requires safety data sheets, hazard communication, and may have use restrictions or authorization requirements. Industrial users must implement risk management measures and report usage under REACH obligations. Additional workplace exposure limits and environmental regulations apply across EU member states.

1,1-dichloroethene is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across Europe. As a controlled substance requiring special handling and documentation, it is only supplied to qualified industrial users with appropriate safety infrastructure and regulatory compliance. OYSI provides comprehensive technical support, safety documentation, and ensures proper packaging and transportation according to European chemical regulations.