Structural, vibrational study and conductivity investigation of a new mixed dipotassium hydrogenselenate dihydrogenarsenate K2(HSeO4)1.5(H2AsO4)0.5

The thermogravimetry (TG) analysis (T.G.A) shows from 450 K two weight losses. No phase transitions were observed by the differential thermal analysis (DTA) curve below this temperature. Moreover, protonic conduction of the mixed compound determined by impedance and modulus spectroscopy has been studied in the temperature range 298-473 K.