The small-volume H-type cell works with about 10 mL of electrolyte per compartment, which suits experiments with expensive electrolytes, isotope-labelled reagents or small amounts of catalyst. The cathode and anode compartments are separated by an ion exchange membrane. This keeps products formed at one electrode from crossing to the other electrode and reacting again, and lets you control the electrolyte, pH and gas atmosphere of each compartment independently.

The flanges of the two compartments are joined with a chain clamp; opening the clamp lets you change the membrane in minutes. The reference electrode sits in the same compartment as the working electrode, which reduces the ohmic (iR) drop in solution. The glass necks are internally threaded; tightening the PTFE lid seals on an O-ring, and the electrodes are closed with sealing screws.

In the standard-sealed cell, the lid and electrode feedthroughs are closed with O-rings and sealing screws. An oxygen-free atmosphere is maintained by purging with nitrogen or argon. It is not intended for vacuum or pressure.

The body is made of borosilicate glass 3.3, which has low thermal expansion (3.3 × 10⁻⁶ K⁻¹) and the highest resistance classes against water (HGB 1) and acids (S 1). Avoid sudden temperature differences above 120 °C to reduce the risk of breakage.

Key Features

10 mL per compartment: low electrolyte consumption
H-type body with chain clamp and replaceable membrane
Three options: single-layer, with sampling port, jacketed
Working and reference electrodes in the same compartment
Low dead volume thanks to raised bottom

Technical Specifications

Cell type	Two-compartment H-type, standard-sealed
Volume	10 mL per compartment
Body	Borosilicate glass 3.3, internally threaded necks
Lid	PTFE with O-ring
Compartment joint	Flange + chain clamp
Electrodes	Long type required
Type options	Single-Layer, Single-Layer with Sampling Port, Jacketed (Double-Layer)
Not included	Electrodes and membrane (sold separately)

Electrodes and membranes shown in the photos are for illustration only and are not included in the price. Compatible reference, counter and working electrodes and membranes are available in the Electrodes category of our site.

For volumes, dimensions or port layouts other than those listed, you can request a custom-made quotation through the Quotation Form.