Bis(2,4,6-triamino-1,3,5-triazin-1-ium) hydrogen phosphate trihydrate

In the title hydrated molecular salt, 2C3H7N6+·HPO42−·3H2O, three of the O atoms of the hydrogen phosphate anion are disordered over two positions, with relative occupancies of 0.763 (1) and 0.237 (1). In the crystal, the components are linked by N—H...N, N—H...O and O—H...O hydrogen bonds