Overview
trans-1,2-Dichloroethylene (trans-DCE) is a chlorinated hydrocarbon with the molecular formula C2H2Cl2. It is one of the two isomers of 1,2-dichloroethylene, the other being cis-1,2-dichloroethylene. trans-DCE is a colorless, volatile liquid with a sweet odor, commonly used in industrial applications as a solvent and chemical intermediate. It is less stable than its cis counterpart but is valued for its specific chemical properties. Trans-DCE is produced through the chlorination of acetylene or via the dehydrochlorination of trichloroethylene. Its primary use is in the manufacturing of other chemicals, including vinyl chloride and perchloroethylene. Due to its volatility and flammability, it requires careful handling and storage.
Physical and Chemical Properties
trans-1,2-Dichloroethylene is a colorless liquid with a sweet, chloroform-like odor. It has a density of 1.256 g/cm³ at 20°C and a boiling point of 48-50°C. The compound is slightly soluble in water but mixes well with most organic solvents, including ethanol, ether, and acetone. Its volatility makes it useful as a solvent in various industrial processes. Trans-DCE is flammable and forms explosive mixtures with air. It is less stable than the cis isomer and can decompose under certain conditions, releasing toxic gases such as hydrogen chloride. The compound is also sensitive to light and heat, which can accelerate its degradation. Proper storage and handling are essential to maintain its stability and safety.
Main Applications
trans-1,2-Dichloroethylene is primarily used as a solvent and degreaser in industrial settings. Its ability to dissolve oils, fats, and resins makes it valuable in cleaning applications, particularly in the electronics and metalworking industries. It is also used as a chemical intermediate in the production of other chlorinated compounds, such as vinyl chloride and perchloroethylene. In addition to its industrial uses, trans-DCE has been studied for its potential as a refrigerant and fumigant, though its flammability and toxicity limit these applications. The compound is sometimes employed in laboratory settings as a reagent or solvent for specific chemical reactions. Its versatility in various chemical processes underscores its importance in the B2B market.
Safety and Storage
trans-1,2-Dichloroethylene is a flammable liquid that poses significant health and safety risks. It can cause irritation to the skin, eyes, and respiratory tract upon exposure. Prolonged or repeated contact may lead to more severe health effects, including central nervous system depression. Proper personal protective equipment (PPE), such as gloves and goggles, should always be used when handling this chemical. Storage of trans-DCE requires a cool, dry, well-ventilated area away from heat sources and open flames. Containers should be tightly sealed to prevent evaporation and contamination. In case of a spill, absorb the liquid with an inert material and dispose of it according to local regulations. Emergency procedures should be in place to address fires or leaks, as the compound can form explosive vapors.
B2B Procurement Guide
When procuring trans-1,2-Dichloroethylene, businesses should prioritize suppliers who provide detailed material safety data sheets (MSDS) and certificates of analysis (CoA). These documents ensure the chemical meets the required purity and safety standards. Buyers should also verify the packaging options, as trans-DCE is typically supplied in drums or smaller containers to minimize handling risks. Price negotiations should consider bulk purchase discounts, as trans-DCE is commonly sold in large quantities for industrial use. However, buyers should balance cost with quality, as impurities can affect the chemical's performance in applications. Logistics planning is crucial, given the compound's flammability; specialized transportation may be required depending on local regulations. Establishing long-term relationships with reputable suppliers can ensure consistent quality and reliable delivery.
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