Diethyl ether
CAS 60-29-7C4H10O74.12 g/mol
Diethyl ether is an ether in which the oxygen atom is linked to two ethyl groups. It has a role as an inhalation anaesthetic, a non-polar solvent and a refrigerant. It is a volatile organic compound and an ether.
IUPAC: ethoxyethane
PubChem
Physical & Chemical Properties
| Melting Point | -177.3 °F (NTP, 1992) |
| Boiling Point | 94.3 °F at 760 mmHg (NTP, 1992) |
| Density | 0.714 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | greater than or equal to 100 mg/mL at 68 °F (NTP, 1992) |
| Flash Point | -49 °F (NTP, 1992) |
| Vapor Pressure | 442 mmHg at 68 °F ; 760 mmHg at 94.3 °F (NTP, 1992) |
| Appearance | Diethyl ether appears as a clear colorless liquid with an anesthetic odor. Flash point -49 °F. Less dense than water and slightly soluble in water. Hence floats on water. Vapors are heavier than air. Used as a solvent and to make other chemicals. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2909
Data: UN Comtrade
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