2,6-Diethylanilinium dihydrogen phosphate–phosphoric acid (1/1)

In the crystal structure of the title salt, C10H16N+·H2PO4−·H3PO4, the H2PO4− and H3PO4 components are connected into infinite chains extending along the b-axis direction by way of O—H...O links. These chains are also linked through O—H...O hydrogen bonds thus building up a supramolecular two-dimensional framework extending parallel to (001). The organic cations cross-link the anionic layers by way of multiple N—H...O interactions, leading to a cohesive network.