... Department Chemie, Ludwig-Maximilians ... The sample was kept at 1370 K for 100 h and then slowly cooled to room temperature at a rate of 2 K/h. The excess bismuth flux was dissolved by a 1:1 molar mixture of H 2 O 2 (ACROS 35%) and ... Cell volume (nm 3 ), V = 1.4227(3). ...