反应条件
in not given dissolving of oxide in HF (heating), filtration, cooling, addn. of excess of satd. soln. of fluoride (pptn.), sepn., washing (EtOH), drying (air), heating (500°C, Ar atmosphere); sublimation (1E-2 Torr, 800 - 850°C), condensation (350 - 400°C);
参考文献
Russian Journal of Inorganic Chemistry, , vol. 42, # 2 p. 246 - 251
