AM_Mercallite_2 Formula: K2 S2 O8 H2 Name: Mercallite Unit cell: 8.429 9.807 18.976 90.0 90.0 90.0 , V=1568.62 Space group: PBCA (61)

Payan F , Haser R , Acta Crystallographica, Section B , 32 (1976) p.1875-1879, On the hydrogen bonding in potassium hydrogen sulphate. Comparison with a, previous crystal structure determination, Locality: synthetic