The Hg/HgO is the best choice reference for alkaline solutions! The Mercury Oxide Reference Electrode is ideal for battery development, energy systems research and development, process control and general electrochemical studies.
It is fast becoming an industry standard. It is very stable and reproducible. Everyone loves the Koslow MOE! Electrode potential is stable to plus or minus one millivolt and recovers quickly from small temperature excursions (about 125 degrees C). The standard electrode potential of the Mercury/Mercury Oxide half-cell is +0.098 volts vs. the normal hydrogen electrode (NHE) in basic solution. The standard concentration of the electrode filling solution is 20% (4.24 Molar) Potassium Hydroxide (KOH). The electrode can be ordered in any concentration of Potassium Hydroxide; this should be as close to that of the test medium as possible to minimize junction effects.* (NaOH) Sodium Hydroxide electrolyte is also available
Applications for the Mercury Oxide Electrode:
Alkaline battery research
Process monitoring in strong alkali or fluoride streams
Electroanalysis in alkaline solution or fluoride solution
Field or lab use
Electrode Body Length: 135 mm
Outside Body Diameter: 16 mm
Body Neck Length: 15 mm
Lead Cable Length: 40 mm to a banana jack
No glass parts
rugged all plastic construction. (PPCO)
Replaceable porous tips
Made in USA
OE maybe be heated to125degrees C.
Custom solution filled electrodes: Part No. 5088C *
OEM users- Custom body modifications: Part No. 5088 B *
Delivery from stock and packaged with care in a handy padded storage carton and includes instructions with MSDS.
Reference Electrode Frits may need to be replaced periodically or if potentials drift or if they get damaged Part No. 5089 Order from the reference electrodes accessories box at left.