Abstract
In the crystal structure of the title compound, C9H22N22+center dot-2H(2)PO(4)(-)center dot H2O, the H2PO4- anions are hydrogen bonded to each other, forming a ribbon parallel to the b axis. The water molecules connect these ribbons via O-H center dot center dot center dot O hydrogen bonds. The organic cations are attached to the dihydrogen phosphate anions and water molecules through N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds, forming an infinite three-dimensional network.