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Methyl Ethyl Ether

Updated: 2026-07-18

Overview

Methyl ethyl ether (MEM), also known as methoxyethane, is a volatile organic compound widely used in industrial applications. It is a colorless gas at room temperature but can be stored as a liquid under pressure. Due to its high flammability and low boiling point, it requires careful handling. MEM is commonly employed as a solvent in chemical synthesis and as a refrigerant in specialized cooling systems. Its volatility makes it suitable for applications requiring quick evaporation, though this also necessitates strict safety protocols.

Physical and Chemical Properties

Methyl ethyl ether has a molecular weight of 60.10 g/mol and a boiling point of just 7.4°C, making it highly volatile. It is slightly soluble in water but mixes well with most organic solvents. The compound's low density (0.725 g/cm³ as a liquid) contributes to its rapid evaporation rate. Its primary chemical characteristic is its high flammability, with a flash point below -20°C. This property requires that MEM be stored and transported in sealed, pressure-resistant containers to prevent accidental ignition or leaks.

Main Applications

In industrial settings, methyl ethyl ether serves as an effective solvent for resins, oils, and other organic compounds. Its volatility makes it ideal for applications where quick drying is necessary, such as in coatings or adhesives. Additionally, MEM is used as a refrigerant in low-temperature systems, though its flammability limits its use compared to non-flammable alternatives. It also acts as a chemical intermediate in the production of more complex organic compounds.

Safety and Storage

Due to its extreme flammability, methyl ethyl ether must be stored in cool, well-ventilated areas away from any potential ignition sources. Proper grounding of containers is essential to prevent static discharge, which could ignite the vapor. Personal protective equipment (PPE), including flame-resistant clothing and respiratory protection, should be used when handling MEM. Emergency equipment, such as fire extinguishers and spill containment materials, must be readily available in storage and work areas.

B2B Procurement Guide

When procuring methyl ethyl ether, buyers should prioritize suppliers with strong safety records and proper chemical handling certifications. Purity levels should be verified through certificates of analysis, as impurities can affect performance and safety. Bulk purchases typically offer cost advantages, but storage capabilities must be assessed to ensure safe containment. Transportation should comply with hazardous materials regulations, including proper labeling and emergency response information.