water in melt Kinetics; react. at 550-800°C, dissolution in H2O: Nb(IV)-oxide formed;parts of the reaction mixture sublimated: NbCl5, niobium oxichloride, NbCl3 formed;
O2 in neat (no solvent, gas phase) placing niobium nitrate into a thermal-sublimation column, dried O2-Ar mixture as carrier gas for SOCl2 (pressure: 13 kPa), heating (350 - 375°C, 15 - 120 min); drying the products over P2O5, elem. anal., product ratio depending on deposition temp., not separated;
参考文献
Russian Journal of Inorganic Chemistry (Translation of Zhurnal Neorganicheskoi Khimii), , vol. 35, p. 10 - 13
Zhurnal Neorganicheskoi Khimii, , vol. 35, p. 20 - 25
