Melamine

The organic compound Melamine is a white powder at room temperature. It contains 67 % nitrogen by mass, which includes three amine moieties, making it a weak base.

Industry uses melamine to produce different kinds of heat-resistant plastics, for example in the production of dinnerware, flooring and insulation.

When exposed to concentrated acid and high temperatures, the structure of melamine degrades and the nitrogen is released as ammonium ions.