Diethyl ether

Diethyl ether
Names
	Preferred IUPAC name Ethoxyethane
	Other names 3-Oxapentane; Dether; Diethyl ether; Diethyl oxide; Ether; Ethyl ether; Ethyl oxide; Solvent ether; Sulfuric ether; Sulphuric ether; Sweet oil of vitriol; Vitriolic ether;
Identifiers
CAS Number	60-29-7 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1696894
ChEBI	CHEBI:35702 ;
ChEMBL	ChEMBL16264 ;
ChemSpider	3168 ;
ECHA InfoCard	100.000.425
EC Number	200-467-2;
Gmelin Reference	25444
KEGG	D01772 ;
PubChem CID	3283;
RTECS number	KI5775000;
UNII	0F5N573A2Y ;
UN number	1155
CompTox Dashboard (EPA)	DTXSID3021720 ;
	InChI InChI=1S/C4H10O/c1-3-5-4-2/h3-4H2,1-2H3 Key: RTZKZFJDLAIYFH-UHFFFAOYSA-N ; InChI=1/C4H10O/c1-3-5-4-2/h3-4H2,1-2H3 Key: RTZKZFJDLAIYFH-UHFFFAOYAB;
	SMILES CCOCC;
Properties
Chemical formula	C4H10O
Molar mass	74.123 g·mol−1
Appearance	Colorless liquid
Odor	Dry, rum-like, sweetish odor
Density	0.7134 g/cm3, liquid
Melting point	−116.3 °C (−177.3 °F; 156.8 K)
Boiling point	34.6 °C (94.3 °F; 307.8 K)
Solubility in water	6.05 g/(100 mL)
log P	0.98
Vapor pressure	440 mmHg (58.66 kPa) at 20 °C
Magnetic susceptibility (χ)	−55.1·10−6 cm3/mol
Refractive index (nD)	1.353 (20 °C)
Viscosity	0.224 cP (25 °C)
Structure
Dipole moment	1.15 D (gas)
Thermochemistry
Heat capacity (C)	172.5 J/(mol·K)
Std molar; entropy (S⦵298)	253.5 J/(mol·K)
Std enthalpy of; formation (ΔfH⦵298)	−271.2 ± 1.9 kJ/mol
Std enthalpy of; combustion (ΔcH⦵298)	−2732.1 ± 1.9 kJ/mol
Pharmacology
ATC code	N01AA01 (WHO)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Extremely flammable, harmful to skin, decomposes to explosive peroxides in air and light, may cause dizziness in a less ventilated place or if ingested.
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H224, H302, H336
Precautionary statements	P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P312, P303+P361+P353, P304+P340, P312, P330, P370+P378, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)	2 4 1
Flash point	−45 °C (−49 °F; 228 K)
Autoignition; temperature	160 °C (320 °F; 433 K)
Explosive limits	1.85–48.0%
	Lethal dose or concentration (LD, LC):
LC50 (median concentration)	73,000 ppm (rat, 2 hr); 6500 ppm (mouse, 1.65 hr)
LCLo (lowest published)	106,000 ppm (rabbit); 76,000 ppm (dog)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 400 ppm (1200 mg/m3)
REL (Recommended)	No established REL
IDLH (Immediate danger)	1900 ppm
Safety data sheet (SDS)	External MSDS
Related compounds
Related ethers	Dimethyl ether; Ethyl methyl ether; Methyl propyl ether; Dipropyl ether; Diisopropyl ether; Dibutyl ether; Divinyl ether; Diphenyl ether; 1,4-Dioxane; Furan;
Related compounds	Diethyl sulfide; Diethyl selenide; Ethanol; Butanols (isomer); 2-Ethoxyethanol; Diethylene glycol; Polyethylene glycol; Diethyl ether hydroperoxide; Diethylamine; Triethylamine;
Supplementary data page
	Diethyl ether (data page)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Diethyl ether, or simply ether, is an organic compound with the chemical formula (CH₃CH₂)₂O, sometimes abbreviated as Et₂O. It is a colourless, highly volatile, sweet-smelling ("ethereal odour"), extremely flammable liquid. It belongs to the ether class of organic compounds. It is a common solvent and was formerly used as a general anesthetic.

Names



Preferred IUPAC name Ethoxyethane
Other names 3-Oxapentane Dether Diethyl ether Diethyl oxide Ether Ethyl ether Ethyl oxide Solvent ether Sulfuric ether Sulphuric ether Sweet oil of vitriol Vitriolic ether
Identifiers
CAS Number	60-29-7^Y
3D model (JSmol)	Interactive image
Beilstein Reference	1696894
ChEBI	CHEBI:35702^Y
ChEMBL	ChEMBL16264^Y
ChemSpider	3168^Y
ECHA InfoCard	100.000.425
EC Number	200-467-2
Gmelin Reference	25444
KEGG	D01772^Y
PubChem CID	3283
RTECS number	KI5775000
UNII	0F5N573A2Y^Y
UN number	1155
CompTox Dashboard (EPA)	DTXSID3021720
InChI InChI=1S/C4H10O/c1-3-5-4-2/h3-4H2,1-2H3^Y Key: RTZKZFJDLAIYFH-UHFFFAOYSA-N^Y InChI=1/C4H10O/c1-3-5-4-2/h3-4H2,1-2H3 Key: RTZKZFJDLAIYFH-UHFFFAOYAB
SMILES CCOCC
Properties
Chemical formula	C₄H₁₀O
Molar mass	74.123 g·mol⁻¹
Appearance	Colorless liquid
Odor	Dry, rum-like, sweetish odor
Density	0.7134 g/cm³, liquid
Melting point	−116.3 °C (−177.3 °F; 156.8 K)
Boiling point	34.6 °C (94.3 °F; 307.8 K)
Solubility in water	6.05 g/(100 mL)
log P	0.98
Vapor pressure	440 mmHg (58.66 kPa) at 20 °C
Magnetic susceptibility (χ)	−55.1·10⁻⁶ cm³/mol
Refractive index (n_D)	1.353 (20 °C)
Viscosity	0.224 cP (25 °C)
Structure
Dipole moment	1.15 D (gas)
Thermochemistry
Heat capacity (C)	172.5 J/(mol·K)
Std molar entropy (S^⦵₂₉₈)	253.5 J/(mol·K)
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	−271.2 ± 1.9 kJ/mol
Std enthalpy of combustion (Δ_cH^⦵₂₉₈)	−2732.1 ± 1.9 kJ/mol
Pharmacology
ATC code	N01AA01 (WHO)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Extremely flammable, harmful to skin, decomposes to explosive peroxides in air and light, may cause dizziness in a less ventilated place or if ingested.
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H224, H302, H336
Precautionary statements	P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P312, P303+P361+P353, P304+P340, P312, P330, P370+P378, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)	2 4 1
Flash point	−45 °C (−49 °F; 228 K)
Autoignition temperature	160 °C (320 °F; 433 K)
Explosive limits	1.85–48.0%
Lethal dose or concentration (LD, LC):
LC₅₀ (median concentration)	73,000 ppm (rat, 2 hr) 6500 ppm (mouse, 1.65 hr)
LC_Lo (lowest published)	106,000 ppm (rabbit) 76,000 ppm (dog)
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 400 ppm (1200 mg/m³)
REL (Recommended)	No established REL
IDLH (Immediate danger)	1900 ppm
Safety data sheet (SDS)	External MSDS
Related compounds
Related ethers	Dimethyl ether Ethyl methyl ether Methyl propyl ether Dipropyl ether Diisopropyl ether Dibutyl ether Divinyl ether Diphenyl ether 1,4-Dioxane Furan
Related compounds	Diethyl sulfide Diethyl selenide Ethanol Butanols (isomer) 2-Ethoxyethanol Diethylene glycol Polyethylene glycol Diethyl ether hydroperoxide Diethylamine Triethylamine
Supplementary data page
Diethyl ether (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references