Absolutely Sealed H-Type Electrochemical Cell (50mL+50mL) for Fundamental Electrochemistry Research, CFERASHTEC

An absolutely sealed H-type electrochemical cell is a high-precision reactor designed for experiments where even trace atmospheric contamination (Oxygen or Moisture) must be excluded, or where gaseous products must be captured with 100% recovery for quantification (e.g., via Gas Chromatography). Unlike standard H-cells that use ground-glass joints—which can leak or require grease—absolutely sealed cells utilize compression-threaded joints (Ace-Threds) or fused glass-to-metal seals to maintain a vacuum-tight environment

To achieve a true hermetic seal, these cells replace traditional components with specialized hardware: (1) Threaded PTFE Plugs (Ace-Threads): Instead of ground glass joints, these cells use threaded openings with internal O-rings (typically Viton or Kalrez). When tightened, they create a gas-tight seal without the need for vacuum grease. (2) Hermetic Electrode Feedthroughs: The electrodes are often permanently sealed into glass-to-metal adapters or passed through tight-fitting PTFE ferrules. (3) Integrated Schlenk Lines: The gas inlet and outlet ports are often equipped with high-vacuum stopcocks (J. Young valves), allowing the entire cell to be moved from a Schlenk line to a glovebox without breaking the seal.