The Mercury Oxide (HgO) is a reference electrode based on the reaction between elemental mercury and mercury (o) Oxide used under high PH Environment.

The Hg/HgO is the best choice analytical reference for alkaline solutions. The Mercury Oxide Reference Electrode is ideal for battery development, energy systems research and development, process control, electro-analytical studies, measure half-cell potentials, titration and many other electrochemical measurements

Before you used the reference electrode Tap the Glass tube and Make sure no air bubble is trapped in the lower portion of the tubing. The electrode should be dipped into 1M NaoH or 1KOH Solution immediately and left overnight before use.