REACTION OF SODIUM WITH IONIC CONDUCTORS CONTAINING P-O BONDS AT ELEVATED TEMPERATURES.

Article abstract of DOI:10.1111/j.1151-2916.1984.tb19743.x

Sodium phosphate and a series of compounds containing Na, Zr, Si, P, and O were found to react with sodium at 380 degree C. The reaction products formed phosphine on hydrolysis. On the basis of these reactions and some thermodynamic calculations, it is not likely that any materials containing P-O bonds will be stable to sodium at the temperatures required for the Na-S battery or Na heat engine operation.