Overview
Diethyl ether, commonly referred to as ether, is an organic compound with the formula C4H10O. It is a colorless, highly volatile liquid with a characteristic sweet, pungent odor. Historically, it was widely used as an anesthetic, though its medical use has declined due to safety concerns. Today, it is primarily utilized as a solvent in laboratories and industrial processes. Ether is produced through the acid-catalyzed dehydration of ethanol. Its low boiling point and high volatility make it an effective solvent for extractions and reactions. However, its flammability and tendency to form explosive peroxides require careful handling and storage.
Physical and Chemical Properties
Diethyl ether is a highly volatile liquid with a boiling point of 34.6°C, making it one of the most volatile common solvents. Its density is 0.7134 g/cm³ at 20°C, and it is slightly soluble in water but miscible with many organic solvents like ethanol and benzene. The compound is highly flammable, with a flash point of -45°C, and forms explosive peroxides when exposed to air over time. These peroxides can detonate upon heating or mechanical shock, necessitating the addition of stabilizers like BHT (butylated hydroxytoluene) in commercial products.
Main Applications
Diethyl ether's primary use is as a solvent in chemical laboratories and industrial processes. It is particularly valued for its ability to dissolve a wide range of organic compounds, making it ideal for extractions and as a reaction medium. In the past, ether was a common anesthetic due to its ability to induce unconsciousness quickly. Although its medical use has diminished, it is still employed in some veterinary practices. Additionally, it serves as a starting fluid for diesel and gasoline engines, aiding in cold-weather ignition.
Safety and Storage
Due to its high flammability and volatility, diethyl ether must be stored in tightly sealed containers away from heat sources and open flames. It should be kept in a cool, well-ventilated area, preferably in a flammable liquids storage cabinet. Special precautions are necessary to prevent peroxide formation. Ether should not be stored for extended periods, and containers should be tested for peroxides before use. Proper personal protective equipment (PPE), including gloves and goggles, is essential when handling this chemical.
B2B Procurement Guide
When procuring diethyl ether, it is crucial to select a reputable supplier that complies with safety and quality standards. Verify the presence of peroxide inhibitors in the product, especially if long-term storage is anticipated. Bulk purchases may offer cost savings, but ensure adequate storage facilities are available. Prices typically range from $20 to $50 per liter, depending on purity and supplier. Always request material safety data sheets (MSDS) and ensure proper transportation and handling protocols are followed.
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