Patent ID: 8680006

Claim:
A method for obtaining an ammonia storage material, which can reversibly absorb and desorb ammonia, wherein the material can be in unsaturated form void of ammonia, partially saturated form wherein the average saturation with ammonia is less than the saturation obtained when the material has absorbed ammonia in the maximum theoretical amount, and fully saturated form wherein the material has absorbed ammonia in the maximum theoretical amount, in a container comprising a container volume with a degree of saturation with ammonia corresponding to at least about 75% of the theoretical maximum ammonia storage capacity of said ammonia storage material in said container volume the method comprising: a) providing said container comprising said container volume, wherein said container volume is filled with a granular or powdered form or a coherent or semi-coherent porous form of said partially saturated ammonia storage material in a molar amount that corresponds to at least about 75% of the molar amount of the fully saturated material, which would fill the container volume completely in form of a single crystal; said partial saturation corresponding to a saturation of the storage material with ammonia to such a degree that the bulk volume of the partially saturated storage material under ambient pressure essentially equals the container volume; b) further saturating said partially saturated ammonia storage material with ammonia to a desired degree of saturation corresponding to at least about 75% of the theoretical maximum ammonia storage capacity of said ammonia storage material in said container volume without agitation.