1.Generally, the reference electrode holes on our sealed electrochemical cell caps are designed to match a reference electrode with a diameter of 6 mm. Therefore, this Ag/AgCl reference electrode with a diameter of 4 mm is not the best choice for a sealed electrochemical cell!ERA131A is a better choice.
2.Due to shipping safety considerations,all reference electrodes are not filled with solution.Before use,the user needs to prepare an internal solution to fill it into the electrode.
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.
tube diameter: 4 mm
effective length: 50 mm
liquid junction core: microporous ceramic filter core
filling solution: 3M/3.5M KCl
potential stability: <5 mV
operating temperature: 0-100 degrees Celsius
Different research systems can choose different reference electrodes:
Neutral system------saturated calomel electrode or Ag/AgCl reference electrode
Alkaline system-----Hg/HgO reference electrode
Acidic system-------Hg/Hg2SO4 reference electrode
Non-aqueous system--Non aqueous Ag+ reference electrode
Product Includes: 1 * Ag/AgCl reference electrode with gold-plated pin 1 * cap 1 * fluorine rubber O-ring
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