Reference Electrode, Silver/Silver Chloride, Double Junction
The standard-sized, double junction, silver/silver chloride (Ag/AgCl) reference electrode is filled with 10% KNO3 solution. The internal reference electrode solution, which cannot be accessed or changed, is 4 M KCl with AgCl. The outer filling solution can be refreshed as usual. The use of a non-halogen containing electrolyte as the external filling solution is to eliminate the concern over halogen interference with the electrochemical reaction, whether in solution or at the working electrode interface. The refrerence electrode body is 9.5 mm OD, therefore ideally used with Standard volume electrochemical cells. The reference electrode is designed to be pass through a 14/20 ground glass joint and held in place by the included PTFE adapter, which can be adjusted to control the immersion depth of the reference electrode into the cell. Pine Research recommends proper storage and use of reference electrodes. A variety of useful tools for storage and care are shown below.
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The standard-sized, double junction, silver/silver chloride (Ag/AgCl) reference electrode is filled with 10% KNO3 solution. The internal reference electrode solution, which cannot be accessed or changed, is 4 M KCl with AgCl. The outer filling solution can be refreshed as usual. The use of a non-halogen containing electrolyte as the external filling solution is to eliminate the concern over halogen interference with the electrochemical reaction, whether in solution or at the working electrode interface. The refrerence electrode body is 9.5 mm OD, therefore ideally used with Standard volume electrochemical cells. The reference electrode is designed to be pass through a 14/20 ground glass joint and held in place by the included PTFE adapter, which can be adjusted to control the immersion depth of the reference electrode into the cell. Pine Research recommends proper storage and use of reference electrodes. A variety of useful tools for storage and care are shown below.
Avoid using this reference electrode with the following: NH3 buffers, sulfides, perchlorates, non-aqueous/organic solvents, and alkaline solutions stronger than 0.1M OH–.
Electrode damage may occur at temperatures beyond recommended range. This range is provided for electrodes with PEEK shrouds.
