AM_Mercallite_1 Formula: K S O4 H Name: Mercallite Unit cell: 8.412 9.8 18.957 90.0 90.0 90.0 , V=1562.77 Space group: PBCA (61)

Cotton F A , Frenz B A , Hunter D L , Acta Crystallographica, Section B , 31 (1975) p.302-304, The structure of potassium hydrogensulfate, Locality: synthetic, Note: y(O23), z(H1), x(H2) corrected