Standard Size Reference Electrodes

Products

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SPECIAL SHIPPING DETAILS: Please note that reference electrodes always ship separately.  Special shipping arrangements may be required to process your order if you purchase a reference electrode.  See individual reference electrode pages for more details.

HAZARDOUS MATERIALS: Additional fees may be applied to cover the costs of shipping reference electrodes with hazardous materials.  Not all reference electrodes may be available for sale in all countries.  See individual reference electrode pages for more details.

All reference electrodes fit through the standard 14/20 ground glass joints found on our standard electrochemical cells.  A PTFE sleeve (included) facilitates mounting the reference electrode in the joint.

See "Description" tab below for additional precautions and information.

To view pricing, you must create an account and login using the "ACCOUNT" menu above.

#DescriptionPrice in USD
Aqueous Silver-Based Reference Electrodes
RREF0021

Single Junction Silver Chloride (Ag/AgCl) Reference Electrode

RREF0024

Double Junction Silver Chloride (Ag/AgCl) Reference Electrode

Aqueous Mercury-Based Reference Electrodes
RREF0022

Single Junction Calomel (Hg/Hg2Cl2) Reference Electrode

RREF0025

Single Junction Mercury Sulfate (Hg/Hg2SO4) Reference Electrode

RREF0026

Double Junction Mercury Sulfate (Hg/Hg2SO4) Reference Electrode

RREF0038

Single Junction Mercury Oxide (Hg/HgO) Reference Electrode
contains no glass, designed for use with alkaline electrochemical systems

Non-Aqueous Reference Electrode Kit
AKREF0033

Non-Aqueous Single Junction Silver (Ag) Reference Electrode Kit
contains Ag electrode, two glass tubes, and 14/20 PTFE adapter

Optional Accessories
RRPG097

Fritted Glass Isolation Tube
for additional isolation of the reference electrode from the main test solution

ACEP1420R12

PTFE Mount for Fritted Tube
slides around fritted tube, fits into a 14/20 port

AKTUBE1420

Reference Electrode Salt Bridge Kit
for superior diffusional isolation of the reference electrode from the main test solution

THCLIP

Alligator Clip, fits Banana Plug
slides on to banana cable plug to allow clip connection to pin on end of reference electrode

ACBPCWBB

Shielded Coax Cable, male BNC to Single Banana Plug
for discontinued CBP bipotentiostat, BNC male fits reference connection on front panel of CBP

SPECIAL SHIPPING DETAILS: Please note that reference electrodes always ship separately.  Special shipping arrangements may be required to process your order if you purchase a reference electrode.  See individual reference electrode pages for more details.

HAZARDOUS MATERIALS: Additional fees may be applied to cover the costs of shipping reference electrodes with hazardous materials.  Not all reference electrodes may be available for sale in all countries.  See individual reference electrode pages for more details.

All reference electrodes fit through the standard 14/20 ground glass joints found on our standard electrochemical cells.  A PTFE sleeve (included) facilitates mounting the reference electrode in the joint.

The junction at the lower end of most reference electrodes is a ceramic frit that should be kept wet at all times.  The non-aqueous reference electrode comes with two glass tubes: one with a ceramic frit and one that terminates in a 2 mm ID open hole.  For the Hg/HgO reference electrode, the frit is made of polyethylene, which has a higher leak rate than ceramic or porous glass.  If frit dries out, soak overnight in distilled water.

A small vial containing electrode filling solution is included with some reference electrodes.  Please note that some reference electrodes are shipped dry and must be filled with electrolyte prior to initial use.

View SDS Forms for reference electrodes and electrolyte filling solutions.

Visit our YouTube channel for helpful instructional videos regarding the use and maintenance of this and many other Pine Research products!

All specifications are subject to change without notice.
Reference Electrode Specifications

Reference Electrode OD

9.5 mm

SDS Forms

Click here to see SDS Forms for reference electrodes and filling solutions

Document #Title
Aqueous Silver-Based Reference Electrodes

DRP10025

Single Junction Silver Chloride Reference Electrode Product Information
click here to download (333 KB download)

DRP10026

Double Junction Silver Chloride Reference Electrode Product Information
click here to download (335 KB download)

Aqueous Mercury-Based Reference Electrodes

DRP10027

Single Junction Calomel Reference Electrode Product Information
click here to download (333 KB download)

DRP10028

Single Junction Mercury Sulfate Reference Electrode Product Information
click here to download (334 KB download)

DRP10029

Double Junction Mercury Sulfate Reference Electrode Product Information
click here to download (336 KB download)

DRP10136

Single Junction Mercury Oxide Reference Electrode Product Information (for Alkaline Electrochemistry)
click here to download (312 KB download)

Non-Aqueous Reference Electrodes

DRP10030

Non-Aqueous Reference Electrode Product Information
click here to download (326 KB download)

DRK10053

Overview of Reference Electrode Operation and Alternative Reference Electrodes
click here to download (1 MB download)

Troubleshooting

DRK10039

Troubleshooting Noise in an Electrochemical System
click here to download (156 KB download)

MaterialLink
RREF0021 Single Junction Silver Chloride

4M KCl with AgCl

click here to download (193 KB download)

RREF0024 Double Junction Silver Chloride

4M KCl with AgCl

click here to download (193 KB download)

10% potassium nitrate

click here to download (204 KB download)

RREF0022 Single Junction Calomel

Mercury

click here to download (129 KB download)

Mercury (I) chloride

click here to download (198 KB download)

4M KCl

click here to download (188 KB download)

RREF0025 Single Junction Mercury Sulfate

Mercury

click here to download (129 KB download)

Mercury (I) sulfate

click here to download (65 KB download)

Saturated potassium sulfate

click here to download (368 KB download)

RREF0026 Double Junction Mercury Sulfate

Mercury

click here to download (129 KB download)

Mercury (I) sulfate

click here to download (65 KB download)

Saturated potassium sulfate

click here to download (368 KB download)

RREF0038 Single Junction Mercury Oxide

Mercury

click here to download (129 KB download)

Mercury (II) oxide

click here to download (97 KB download)

4.24M KOH

click here to download (221 KB download)

All SDS Forms

SDS Forms

Click here to view all available SDS Forms