2-Chloro­benzene-1,4-diaminium bis­(dihydrogenphosphate)

The asymmetric unit of the title salt, C(6)H(9)ClN(2) (2+)·2H(2)PO(4) (−), contains two dihydrogenphosphate anions and one 2-chloro­benzene-1,4-diaminium dication. The H(2)PO(4) (−) anions are inter­connected through strong O—H⋯O hydrogen bonds to form two-dimensional infinite layers parallel to (001). The organic entities are anchored to the inorganic layers through N—H⋯O hydrogen bonds, and through weak C—Cl⋯O halogen bonds [3.159 (2) Å, 140.48 (7)°]. No π–π stacking inter­actions between neighboring aromatic rings or C—H⋯π inter­actions towards them are observed. Minor disorder is observed for the Cl atom and one hy­droxy group [minor-component occupancy = 3.29 (9)%].