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Calomel Reference Electrode

$70.89
Buy calomel reference electrode at economical price. This calomel electrode is a type of reference electrode commonly used in electrochemical measurements and experiments. Consists of a mercury-mercurous chloride (Hg/Hg2Cl2) electrode system, with a saturated potassium chloride (KCl) solution acting as the electrolyte.
SKU: ATO-RE-6802-01
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Delivery date: 6-12 days

Calomel reference electrodes are stable and have well-defined potential, making them suitable for accurate and reproducible measurements in various electrochemical applications, such as pH determination and cell potential measurements. 

Specification

Model ATO-6802-01
Electrode Type Calomel (Hg/ Hg2Cl2) Reference Electrode
Reference Type Calomel Single Salt Bridge Type
Salt Bridge Material Ceramic Sand Core
Filling Liquid 3.8mol/L KCl
Shell Material Glass
Temperature Range 5℃~55℃
Dimension φ12*120mm
Connector U-Shaped Fork Piece


Dimension

Calomel reference electrode dimension

Application

Calomel reference electrode application

Tips: Difference between saturated calomel electrode (SCE) and a silver/silver chloride electrode

The saturated calomel electrode (SCE) and the silver/silver chloride electrode (Ag/AgCl) are both reference electrodes used in electrochemical measurements. The SCE consists of mercury, mercurous chloride (calomel), and a saturated potassium chloride solution. It provides a stable and reproducible reference potential, commonly used in chloride-containing electrolytes. However, SCE has some drawbacks, such as toxicity and the potential for mercury contamination.

On the other hand, the Ag/AgCl electrode consists of a silver wire coated with silver chloride. It offers a non-toxic alternative with a stable potential, suitable for a wider range of applications. The Ag/AgCl electrode is especially useful in biological and environmental studies. Unlike the SCE, it avoids the environmental and health concerns associated with mercury. Both electrodes operate on the principle of a half-cell reaction involving chloride ions, but their composition and applications differ, allowing researchers to choose the reference electrode that best suits their experimental conditions.

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