DESCRIPTION

Nitrogen occurs as a colorless gas that is not combustible and does not support combustion. It may be condensed to a colorless liquid boiling at −195.8° or to a white solid melting at −209.8°. One L of the gas weighs about 1.25 g at 0° and 760 mm Hg. One volume of the gas dissolves in about 62 volumes of water and in about 8 volumes of alcohol at 20° and 760 mm Hg.