EtOEt

EtOEt is the shorthand designation for ethoxyethane, commonly known as diethyl ether. Its chemical formula is C4H10O, consisting of an oxygen atom bonded to two ethyl groups. It is a volatile, colorless liquid that has long been used as a solvent in organic synthesis and, in the early history of chemistry, as an anesthetic agent. The term EtOEt emphasizes the ether linkage between two ethyl groups.

Physically, diethyl ether is highly flammable and forms an explosive vapor–air mixture. It is typically stored in tightly closed containers in a cool, well-ventilated area away from sources of ignition. It is relatively immiscible with water or only sparingly soluble, but it mixes well with many organic solvents. Its boiling point is low, around 34.6 °C, which contributes to its rapid evaporation under ordinary conditions.

Preparation and uses are centered on its role as a versatile organic solvent. It is produced industrially by acid-catalyzed dehydration of ethanol, and in the laboratory it is prepared by similar dehydration reactions or by distillation of reaction mixtures. Diethyl ether is extensively used as a solvent for Grignard reagents and other highly reactive organometallics, as well as for extraction and chromatography in certain contexts. Its relatively low polarity makes it suitable for dissolving many nonpolar or moderately polar compounds.

Safety and handling considerations are significant. Diethyl ether vapors can cause dizziness and central nervous system depression if inhaled, and repeated exposure can pose health risks. Importantly, ethers form peroxides upon standing in air, especially when aged or concentrated, which can be shock-sensitive and explosive. Therefore, peroxides should be avoided or monitored, stabilizers such as BHT may be used, containers kept away from light and heat, and standard precautions for flammable solvents should be followed.