Reversible Hydrogen Electrode

Reversible Hydrogen Electrode (RHE) is the reversible electrode which the hydrogen gas is generating by electrolysis of strong acid and trapping, while it is used. It makes unnecessary the complicated and dangerous set-up of the hydrogen cylinder and avoid the large volume of hydrogen gas exhaustion, even though it has a good potential stability.

The RHE has a large application field, it can be used in a strong acid solution (<pH 2), such as 0.5 mol/L sulfuric acid, also in a neutral solution, when it is applied with a double junction chamber.

 

   
For application in an acid solution (left), and RHE with a double junction chamber, for application in a neutral solution (right).

Experimental data on RHEK Reversible hydrogen electrode kit

Reversible hydrogen electrode kit and Double junction chamber contents

Reversible hydrogen electrode kit

The RHEK Reversible hydrogen electrode kit can be used without Double junction chamber when the strong acid (<pH 2, such as 0.5 mol/L sulfuric acid) is used as an electrolyte solution.

Catalog No.	Description
013373	RHEK Reversible hydrogen electrode kit
Content
013374	RHE Reversible hydrogen electrode
	Tubing clamp
	Silicone tube
	O-ring
	Female lure fitting
	Disposable syringe

The five items, without the catalog number, are available as a kit.
013378 RHEK accessories kit

Double junction chamber kit

The Double junction chamber kit is used when the electrolyte solution is a weak acid, neutral solution, solution containing scum etc.

Catalog No.	Description
013375	Double junction chamber kit
Content
013376	Double junction chamber
	O-ring
013377	PTFE Cap for double junction chamber
002222	Platinum counter electrode 5.7 cm

Specifications

References

1) C. H. Hamann, A. Hamnett, W. Vielstich, “Electrochemistry”, p. 90, Wiley - VCH (1998).
2) D. H. G. Ives, G. J. Janz, Eds., “Reference Electrodes”, p. 161, Academic Press (1961).

Technical note

- Troubleshooting
- Setup of the electrode