Cerous nitride, CeN

Gas is violently evolved when a little water is added to the nitride: -

CeN + 2H₂O = CeO₂ + NH₃ + H.

It dissolves in acids, producing cerous and ammonium salts, e.g.: -

2CeN + 4H₂SO₄ = Ce₂(SO₄)₃ + (NH₄)₂SO₄.