Non-aqueous Ag/Ag+ Reference Electrode

Product Description

This silver/silver-ion (Ag/Ag+) reference is designed for non-aqueous electrochemistry, where aqueous Ag/AgCl and SCE are unsuitable. A typical implementation uses AgNO3 dissolved in a compatible organic solvent (commonly acetonitrile) with a supporting electrolyte such as tetrabutylammonium hexafluorophosphate; a fritted junction isolates the internal solution. For sensitive systems, a double-junction bridge helps minimise leakage of Ag+ into the cell. Because junction potentials and composition can shift in non-aqueous media, daily calibration against an internal standard (e.g., ferrocene) is recommended to report potentials on a consistent scale. This electrode is widely used in organic electrosynthesis, molecular redox chemistry and materials studies requiring water-free conditions. Maintain performance by renewing filling solutions, preventing junctions from drying, and storing with the frit wet.