Determination of residual sodium content in silver and silver oxide composite materials

Abstract

This paper deals with a procedure to determine the residual sodium content in silver oxide-metal oxide (intermediary product) and silver-metal oxide composites. In addition, an equilibrium curve showing the evolution of sodium content in the intermediary product as a function of sodium concentration in the washing liquid is given. So the residual sodium content in the solid may be subsequently deduced by measurement of the sodium concentration in the corresponding washing liquid. The influence of both silver and sodium contents on the procedure is also investigated.