The study of sodium saturation temperatures by its oxide and azide at their simultaneous occurrence in sodium solution

The new technique based on analysis of the signals from electro-chemical oxygen cell and hydrogen sensor located in sodium stream behind heat and mass exchanger with electromagnetic sodium mixing inside it is applied for determination of the temperature of sodium saturation by its oxide and hydride. It is revealed that apparent increase in oxygen and hydrogen dissolving with second impurity concentration growth is caused by sodium hydroxide formation. The equilibrium constant of the reaction NaOH + 2Na ↔ Na2O + NaH at 400 deg C is estimated. Experimental error sources and their values are analyzed