Half a century later, nitrous oxide came into use as an anesthetic.
As prepared by the reduction of the oxide it is a grey powder.
The metal is chiefly used, as the oxide, for colouring glass and porcelain.
Nitrogen peroxide is the most stable oxide of nitrogen.
Cobalt monoxide, CoO, is prepared by heating the hydroxide or carbonate in a current of air, or by heating the oxide C0304 in a current of carbon dioxide.