Non-Aqueous Glass Frit Standard Reference Electrode

This standard size non-aqueous silver (Ag) reference electrode comes with a glass tube that has an outer diameter of 9.5 mm and fits through the standard 14/20 ground glass joints found on our standard electrochemical cells.  A PTFE sleeve (included) facilitates mounting the reference electrode in the joint.  The overall length of the reference electrode is 192 mm, and the electrical connection is made via a 2.0 mm diameter pin at the top end of the electrode.

The frit at the bottom is a porous glass material called Varapor100 (a replacement to the now-discontinued Vycor), which is a glass frit containing pores of around 10 nm in diameter.  This glass frit is fixed in place via FEP heat shrink tubing, and can be removed and replaced with a new glass frit if needed.  Porous glass frit replacement kits are available and can be purchased separately.

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