Catalog Number
ACMA00017341
Description
Diethylamine appears as a clear colorless liquid with an ammonia-like odor. Density 5.9 lb / gal. Flash point -15°F. A respiratory irritant. Corrosive to the eyes and skin. Vapors heavier than air. Toxic oxides of nitrogen produced during combustion.;Liquid;liquid;Liquid;COLOURLESS LIQUID WITH PUNGENT ODOUR.;Colorless liquid with a fishy, ammonia-like odor.;Colorless liquid with a fishy, ammonia-like odor.
IUPAC Name
N-ethylethanamine
Molecular Weight
73.14g/mol
Molecular Formula
C4H11N;(C2H5)2NH;(C2H5)2NH;C4H11N
InChI
InChI=1S/C4H11N/c1-3-5-4-2/h5H,3-4H2,1-2H3
InChI Key
HPNMFZURTQLUMO-UHFFFAOYSA-N
Boiling Point
131.9 °F at 760 mm Hg (NTP, 1992);55.5 °C;55.5 °C;55.5 °C;132°F;132°F
Melting Point
-58 °F (NTP, 1992);-50.0 °C;-50 °C;-50 °C;-50°C;-50 °C;-58°F;-58°F
Flash Point
-20 °F (NTP, 1992);-22.99 °C (-9.38 °F) - closed cup;< -26 °C, closed cup;5 °F open cup;Less than - 17.8 °C closed cup;-28 °C c.c.;-15°F;-15°F
Density
0.708 at 68 °F (USCG, 1999);0.7056 g/cu cm at 20 °C;Relative density (water = 1): 0.7;0.71;0.71
Solubility
greater than or equal to 100 mg/mL at 63° F (NTP, 1992);13.67 M;1000 mg/mL at 25 °C;In water, infinitely soluble /1X10+6 mg/L/ at 25 °C;Miscible with water, alcohol;Soluble in ether and carbon tetrachloride;Miscible with most organic solvents;Sol in chloroform;Soluble in paraffin hydrocarbons, aromatic and aliphatic hydrocarbons, fixed oils, mineral oils, oleic and stearic acids;Solubility in water: miscible;Miscible
Application
Diethylamine serves a versatile and essential role in various industrial applications, primarily due to its strong alkalinity and solubility in a wide range of solvents. As a secondary aliphatic amine, it acts as an intermediary in the manufacture of numerous commercial products, including insecticides, pharmaceuticals, and textile finishing agents. Its chemical properties make it an effective polymerization inhibitor and catalyst in the polymer industry, as well as a rubber processing accelerator and a corrosion inhibitor. Beyond these uses, diethylamine is employed as a selective solvent for purifying oils, fats, and waxes, and plays a role in the petroleum industry as a flotation agent. Additionally, it contributes to the production of DEET for insect repellents, showcasing its extensive utility and adaptability across multiple sectors.
Color/Form
Colorless liquid
Corrosivity
Liquid diethylamine will attack some forms of plastics, rubber, and coatings.
Covalently-Bonded Unit Count
1
Heat of Vaporization
31.31 kJ/mol at 25 °C
Log P
0.58 (LogP);0.58;log Kow = 0.58;0.58
MeSH Entry Terms
diethylamine;diethylamine acetate;diethylamine hydrobromide;diethylamine hydrochloride;diethylamine perchlorate;diethylamine phosphate (1:1);diethylamine sulfate;diethylamine sulfite (1:1)
Monoisotopic Mass
73.089149g/mol
Odor
Fishy, ammonia-like odor
Other Experimental
Wt/gal at 20 °C = 5.91 lb;Saturation concentrationin air: 757 g/cu m at 20 °C; 1,117 g/cu m at 30 °C;It dissolves hot paraffin and carnauba waxes ...;Amines tend to be fat soluble /Amines/;Critical volume: 304 cu cm/mol;Critical density: 0.246 g/cc;Vapor (gas) specific gravity: 2.5; ratio of specific heats of vapor (gas): 1.079; heat of solution: -202 Btu/lb= -112 cal/g= -4.69X10+5 J/kg;Saturated liquid density: 44.090 lb/cu ft; liquid heat capacity: 0.601 Btu/lb-F; liquid thermal conductivity: 0.850 Btu-inch/hr-sq ft-F; saturated vapor pressure: 3.933 lb/sq in; saturated vapor density: 0.05059 lb/cu ft (all at 70 °F);Ideal gas heat capacity: 0.377 Btu/lb-F at 75 °F;Crystals from alcohol + ether. MP: 226 °C. Hygroscopic. BP: 32-330 °C. Density: 10.28 at 21 °C/4 °C. Soluble in water, alcohol, chloroform. Practically insoluble in ether. /Diethanolamine hydrochloride/;Henry's Law constant = 2.55X10-5 atm cu-m/mol at 25 °C;Hydroxyl radical reaction rate constant = 8.07X10-11 cu cm/molecule-sec at 25 °C (est)
Refractive Index
Index of refraction: 1.3864 at 20 °C/D
Stability
Stable under recommended storage conditions.
UN Number
1154;1154;1154;1154;1154
Vapor Density
2.53 (NTP, 1992) (Relative to Air);2.52 (Air = 1);Relative vapor density (air = 1): 2.5;2.53
Vapor Pressure
195 mm Hg at 68 °F ; 200 mm Hg at 70° F (NTP, 1992);237.41 mmHg;237 mm Hg at 25 °C;Vapor pressure, kPa at 20 °C: 25.9;192 mmHg;192 mmHg
Viscosity
0.319 mPa.s at 25 °C; 0.239 mPa.s at 50 °C
