The RE-61AP reference electrode is made of Hg/HgO instead of calomel paste, and 1 M sodium hydroxide is used as an electrolyte solution. It is used under high pH environment as reference electrode.
|HgO + H2O + 2e = Hg + 2OH-
E0=118 mV vs RHEK （25°C）
∗ The reference potential is the measured value using RHEK reversible hydrogen electrode kit (Cat. No. 013373).
RE-61AP is the new model of RE-6AP.
The resistance to alkaline solution has been improved.
This product is delivered with deionized water filled in, to be filled with 1 M NaOH aqueous solutions by the user.
Please pay attention to handling.
∗1 M NaOH solution used in this electrode is not provided, also we do not supply.
- Holder material: Polymethylpentene, for the high chemical resistance is used.
- Main body: Screw type to be removable
- Liquid junction: Ceramic tip