“…BiPO 4 has been claimed for several aspects of technical application, including catalysis [1,2], orthophosphate ion sensing by means of a quartz-crystal microbalance [3], as well as coprecipitation and separation of radioactive actinides [4,5]. Especially for catalysis BiPO 4 is a promising candidate and has been used, e.g., for a reduction of butyraldehyde to n-butanol [6].…”