Dipotassium disulfanilamidate trihydrate

The asymmetric unit of the title compound, 2K(+)·2C(6)H(7)N(2)O(2)S(−)·3H(2)O, consists of two potassium cations located on mirror planes, one sulfanilamidate anion in a general position and one and a half mol­ecules of water, one of which is also located on a mirror plane. One potassium cation is seven-coordinated by six sulfonyl O atoms and one water mol­ecule, whereas the other is surrounded by six water O atoms and two sulfonyl O atoms. In the crystal structure, the components are connected into polymeric sheets in the bc plane. The two-dimensional structure is consolidated by N—H⋯O, O—H⋯O, O—H⋯N and C—H⋯π inter­actions. The layers are further linked into a three-dimensional network via N—H⋯O, N—H⋯N and O—H⋯N hydrogen bonds.