Behavior of H2O surrounding NH4+ and Al3+ in NH4Al(SO4)2·12H2O by 1H MAS NMR, 14N NMR, and 27Al NMR
In order to understand the thermodynamic properties and structural geometry of NH4Al(SO4)2·12H2O, we studied the magic angle spinning nuclear magnetic resonance (MAS NMR) and static NMR as a function of temperature.