“…It has been demonstrated that Mg(NOs)2 (which is extremely hygroscopic) and A^ISO^a re inhomogeneously dispersed in AN and are effective as phase stabilizers only until the water content of the AN prill exceeds the capacity of those desiccants (Sjolin, 1971). It has also been demonstrated (Hansen and Berthold, 1972;Hansen, 1974) that AN prills, phase-stabilized with Mg(NOs)2 or borate/phosphate/sulfate (Brown et al, 1968a(Brown et al, ,b, 1967 (which presumably is similarly inhomogeneously dispersed) are susceptible to destabilization by a little water, as revealed by the detonability investigation mentioned above. Explosion sensitivity of ammonium nitrate is increased by the increased porosity produced by cycling through the 32 °C phase change.…”