Ethylamine appears as a colorless liquid or a gas (boiling point 62°F) with an odor of ammonia. Flash point less than 0°F. Density of liquid 5.7 lb / gal. Corrosive to the skin and eyes. Vapors are heavier than air. Produces toxic oxides of nitrogen during combustion. Exposure of the closed container to intense heat may cause it to rupture violently and rocket. Ethylamine is a two-carbon primary aliphatic amine. It has a role as a human metabolite. It is a conjugate base of an ethylaminium.