In an article of R.D Bardo (J. de Phys. IV (1995) C4-561), an explosive with a lower sensitivity than TATB and an energy content of 6.57 MJ/kg, is suggested to be formed when HNO3 is intercalated in hexagonal boron nitride. No description of how to prepare the compound is however included in the article but it is possible that a method for intercalation of HNO3 into graphite also is applicable on intercalation in boron nitride. Extended studies of a considerable amount of different intercalation reactions in graphite have been performed and published and there also exist a number of articles regarding intercalation of HNO3. This report gives a general introduction into intercalation chemistry applied on intercalation in graphite and boron nitride plus an overview of published studies on intercalation in these compounds.