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Reference Electrode, Saturated Calomel, Single Junction

Part Number
RREF0022

The standard-sized, single junction, saturated calomel (Hg2Cl2) reference electrode is filled with 4M KCl. 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.

Product Parts List

This product consists of separately available parts. View the parts list in the tab below.

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The standard-sized, single junction, saturated calomel (Hg2Cl2) reference electrode is filled with 4M KCl. 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.

Warning: Product Contains Mercury

To function properly, this electrode necessarily contains a small amount of mercury. The maximum amount of mercury in this electrode is 1.8 grams. Use proper personal protective equipment during use. Store safely. Follow all environmental waste protocols and procedures.

Compatibility Notice

Avoid using this reference electrode with the following: acids, cations that will form insoluble hydroxides, and non-aqueous/organic solvents

Reference Electrode, Saturated Calomel, Single Junction is a single product with individual parts that may be purchased separately. The data below aggregates the specifications for each part in this product.
Reference Electrode, Saturated Calomel, Single Junction
Reference Electrodes
Reference chemistry
Hg₂Cl₂ (calomel)
Standard potential
+241 mV vs NHE
Reference size type
Reference electrode body diameter
Reference electrode length
19 cm
Reference frit material
External fill solution
4 M KCl
Refillable
Typical variance
±3 - 5 mV
Typical input impedance
< 10 kΩ
Reference electrode connection style
1.6 mm OD x 8.5 mm long brass pin
Reference electrode body material
4M Potassium Chloride Reference Electrode Filling Solution
Consumables
Product volume
500 mL
Standard Reference Electrode Adapter, 14/20 Taper
Reference Electrodes
Reference electrode body diameter
Reference Electrode, Saturated Calomel, Single Junction is sold as a simple product; however, customers may wish to order replacement or additional components of this product. We call these "parts" of the product. Should you want more details on individual parts of this product or wish to order an additional or replacement part, refer to the list of parts below with links to their product page.
Image
Product Name
Part #
Quantity
Price
4M Potassium Chloride Reference Electrode Filling Solution
4M Potassium Chloride Reference Electrode Filling Solution
RRSLN0007-500
1
Reference Electrode 14/20 Adapter
Standard Reference Electrode Adapter, 14/20 Taper
ACEP1420A3
1
Document #
Title
Type
Download
DRP10031
Reference Electrode Storage and Master Reference Electrodes
DRK10053
Overview of Reference Electrode Operation and Alternative Reference Electrodes
DRP10027
Single Junction SCE Reference Electrode Guide
For this product, any applicable SDS will be listed here by category. You can view or download the SDS by clicking the appropriate button.
Material Group
Material Name
Actions
Reference Electrode Materials
Mercury Chloride, Calomel (Hg₂Cl₂)
Reference Electrode Materials
Mercury (Hg)
Reference Electrode Filling Solutions
4 M Potassium Chloride (KCl)
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