Diethylamine

Diethylamine[1]
Skeletal formula of diethylamine
Ball and stick model of the diethylamine molecule
Names
Preferred IUPAC name
N-Ethylethanamine
Other names
(Diethyl)amine
Diethylamine (deprecated[2])
Identifiers
3D model (JSmol)
605268
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.003.380 Edit this at Wikidata
EC Number
  • 203-716-3
MeSH diethylamine
RTECS number
  • HZ8750000
UNII
UN number 1154
  • InChI=1S/C4H11N/c1-3-5-4-2/h5H,3-4H2,1-2H3 checkY
    Key: HPNMFZURTQLUMO-UHFFFAOYSA-N checkY
  • CCNCC
Properties
C4H11N
Molar mass 73.139 g·mol−1
Appearance Colourless liquid
Odor fishy, ammonical
Density 0.7074 g mL−1
Melting point −49.80 °C; −57.64 °F; 223.35 K
Boiling point 54.8 to 56.4 °C; 130.5 to 133.4 °F; 327.9 to 329.5 K
Miscible
log P 0.657
Vapor pressure 24.2–97.5 kPa
150 μmol Pa−1 kg−1
Acidity (pKa) 10.98 (of ammonium form)
-56.8·10−6 cm3/mol
1.385
Thermochemistry
178.1 J K−1 mol−1
−131 kJ mol−1
−3.035 MJ mol−1
Hazards
GHS labelling:
GHS02: Flammable GHS05: Corrosive GHS07: Exclamation mark
Danger
H225, H302, H312, H314, H332
P210, P280, P305+P351+P338, P310
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
3
3
1
Flash point −23 °C (−9 °F; 250 K)
312 °C (594 °F; 585 K)
Explosive limits 1.8–10.1%
Lethal dose or concentration (LD, LC):
540 mg/kg (rat, oral)
500 mg/kg (mouse, oral)[4]
4000 ppm (rat, 4 hr)[4]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 25 ppm (75 mg/m3)[3]
REL (Recommended)
 TWA 10 ppm (30 mg/m3) ST 25 ppm (75 mg/m3)[3]
IDLH (Immediate danger)
 200 ppm[3]
Safety data sheet (SDS) hazard.com
Related compounds
Related amines
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Diethylamine is an organic compound with the formula (CH3CH2)2NH. It is classified as a secondary amine. It is a flammable, volatile weakly alkaline liquid that is miscible with most solvents. It is a colorless liquid, but commercial samples often appear brown due to impurities. It has a strong ammonia-like odor.

  1. ^ Merck Index, 12th Edition, 3160
  2. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 671. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
  3. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0209". National Institute for Occupational Safety and Health (NIOSH).
  4. ^ a b "Diethylamine". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).