Thermochemical Study of Gaseous Salts of Oxygen-containing Acids: VII. Alkaline-Earth Metal Niobates

摘要

The existence of gaseous alkaline-earth metal niobates was estalbished by high-temperature mass spectrometry. The constants of equilibria involving the niobates and the corresponding oxides were calculated, and the standard enthalpies of formation and atomization of gasaeous BeNbO_3, CaNbO_3, SrNbO_3, BaNbO_2, BaNbO_3 and BaNb_2O_6 were determined.