# | Description | Price in USD | |
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Aqueous Silver-Based Reference Electrodes | |||
RREF0021 |
Single Junction Silver Chloride (Ag/AgCl) Reference Electrode |
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RREF0024 |
Double Junction Silver Chloride (Ag/AgCl) Reference Electrode |
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Aqueous Mercury-Based Reference Electrodes | |||
RREF0022 |
Single Junction Calomel (Hg/Hg2Cl2) Reference Electrode |
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RREF0038 |
Single Junction Mercury Oxide (Hg/HgO) Reference Electrode |
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Non-Aqueous Reference Electrode | |||
AFREF010192 |
Non-Aqueous Glass Frit Standard Reference Electrode |
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Porous Glass Frit Replacement Kit | |||
AKFRIT125 |
Porous Glass Frit Replacement Kit Note: this product can only be used with the Non-Aqueous Reference Electrode |
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Optional Accessories | |||
RRPG331 |
Standard Size Reference Electrode Storage Vessel reference electrodes sold separately |
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RRPG097 |
Fritted Glass Isolation Tube |
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RRPG359 |
Standard Cell Luggin Tube |
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ACEP1420R12 |
PTFE Mount for Fritted Tube |
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AKTUBE1420 |
Reference Electrode Salt Bridge Kit |
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RRPG380 |
Standard to LowProfile Reference Electrode Adapter |
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THCLIP |
Alligator Clip, fits Banana Plug |
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ACBPCWBB |
Shielded Coax Cable, male BNC to Single Banana Plug |
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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.
See "Description" tab below for additional precautions and information.
To view pricing or purchasing options in your country, please register or login to your account.
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.
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 a replaceable Varapor100 (similar to Vycor) porous glass frit, secured with FEP heat shrink tubing (note: no other standard size reference electrodes currently use this glass frit). 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.
Single Junction Silver Chloride Reference Electrode | |
Standard Potential |
0.199 V vs. NHE |
Filling Solution |
4 M KCl with AgCl |
Double Junction Silver Chloride Reference Electrode | |
Standard Potential |
0.199 V vs. NHE |
Inner Filling Solution |
4 M KCl with AgCl |
Outer Filling Solution |
10% KNO3 |
Single Junction Calomel Reference Electrode | |
Standard Potential |
0.241 V vs. NHE |
Filling Solution |
4M KCl |
Single Junction Mercury Oxide Reference Electrode | |
Standard Potential |
0.098 V vs. NHE |
Filling Solution |
4.24M KOH |
Document # | Title |
---|---|
Aqueous Silver-Based Reference Electrodes | |
DRP10025 |
Single Junction Silver Chloride Reference Electrode Product Information |
DRP10026 |
Double Junction Silver Chloride Reference Electrode Product Information |
Aqueous Mercury-Based Reference Electrodes | |
DRP10027 |
Single Junction Calomel Reference Electrode Product Information |
DRP10028 |
click here to download (335 KB download) |
DRP10029 |
Double Junction Mercury Sulfate Reference Electrode Product Information |
DRP10136 |
Single Junction Mercury Oxide Reference Electrode Product Information (for Alkaline Electrochemistry) |
Non-Aqueous Reference Electrodes | |
DRP10263 |
Standard Non-Aqueous Glass Frit Reference Electrode Product Information |
DRP10264 |
Porous Glass Frit Replacement Kit Product Information |
DRK10053 |
Overview of Reference Electrode Operation and Alternative Reference Electrodes |
Troubleshooting | |
DRK10039 |
Troubleshooting Noise in an Electrochemical System |
Material | Link |
---|---|
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) |
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) |
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 |
Below are selected product references: