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Ag AgCl Reference Electrode Silver Silver Chloride Φ6*140mm Glass Rod

In electrochemistry, in order for a specific reaction to occur, a stable electric potential needs to be applied to the working electrode. The potential of the working electrode should always be accurately controlled. This is why a reference electrode is needed as a potential reference standard. Common reference electrodes include Silver Silver Chloride Ag/AgCl reference electrode, saturated calomel electrode,Hg/HgO reference electrode, Hg/Hg2SO4 reference electrode and Non aqueous Ag+ reference electrode,etc.

The silver-silver chloride (Ag/AgCl) electrode is the most commonly used reference electrode. Compared with calomel electrodes that use mercury and its salts, Ag/AgCl electrodes are more environmentally friendly. Its electrode potential also has sufficient stability, reliability and reproducibility.

Special attention should be paid to maintenance and storage when using Ag/AgCl reference electrode. Before use rinse it with deionized water. If air bubbles are present around the porous frit, flick the tip several times to remove them. For cleaning use detergent (dish washing detergent with water), alcohols or acetone and rinse it with deionized water at the end.Compared with other reference electrodes, Ag/AgCl reference electrode is more sensitive to light. Therefore, when not in use for a short period of time, it is necessary to remove the rubber cap at the lower end of the Ag/AgCl reference electrode and soak it in a dark cup filled with saturated potassium chloride solution for storage. When it is not used for a long time, it is necessary to add a new filling solution to the Ag/AgCl reference electrode, cover it with a rubber cap, and store it away from light.

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