SILVER/SILVER-CHLORIDE ELECTRODE2

"The operating principle of this electrode is that of an electrode of the second kind. The equilibrium electrode potential is a function of the chloride concentration of the internal electrolyte (""filling solution""). The most commonly used electrolyte is 4 molar potassium chloride, producing a potential of 0.222 volt against the standard hydrogen electrode at 25 oC. Occasionally, other concentrations of potassium chloride or other chloride salts are used. "