Electrodes
Small reference electrodes
Everyone needs a reference
Reference electrodes need to have an intrinsic redox potential that is stable. A large variety of small reference electrodes is available to cover all different electrolytes and applications.
In electrochemistry, the most basic equipment to be able to perform your experiment is a reference electrode. A reference electrode has a fixed electrochemical potential and is used to apply a potential difference to the electrode. Depending on your electrolyte and your system, you might want to prefer using chloride-based reference electrodes (Calomel, Ag/AgCl) or sulfate-based electrodes (Hg/HgSO4). Small reference electrodes are compatible with small analytical cells. Replacement kits are also available.
Specifications and ordering information
| Catalogue number | Junction | Electrolyte | Purpose | |
| RE-1B reference electrode (Ag/AgCl – length: 78 mm, OD: 6 mm) | A-012167 | IPPG | 3 M NaCl | SVC-2, SVC-3, VC-4, bulk electrolysis, RRDE-3A, flat cell |
| RE-1S reference electrode (Ag/AgCl – length: 52 mm, OD: 4.5 mm) | A-012168 | IPPG | 3 M NaCl | SECM |
| RE-1BP reference electrode (Ag/AgCl – length: 52 mm, OD: 6 mm) | A-013613 | Ceramics | 3 M NaCl | SVC-2, SVC-3, VC-4, bulk electrolysis, RRDE-3A, EQCM, flat cell |
| RE-1CP reference electrode (Ag/AgCl – length 92 mm, OD: 6 mm) | A-013429 | Ceramics | Saturated KCl | SVC-2, SVC-3, VC-4, bulk electrolysis, RRDE-3A, flat cell |
| RE-2BP calomel reference electrode (length: 92 mm, OD: 6 mm) | A-013430 | Ceramics | Saturated KCl | SVC-2, SVC-3, VC-4, bulk electrolysis,RRDE-3A, flat cell |
| RE-3VT reference electrode (Ag/AgCl – screw type, poly acetal resin – length: 52 mm, OD: 10 mm) | A-013488 | Ceramics | 3 M NaCl | for flow cell spectroelectrochemical cell SEC-3F |
| RE-2CP reference electrode (Hg/Hg sulfate – length: 92 mm, OD: 6 mm) | A-013431 | IPPG | Saturated K2SO4 | Free from Chloride Ion |
| RE-61AP reference electrode (Hg/HgO – length: 92 mm, OD: 6 mm) | A-013395 | Ceramics | 1 M NaOH | or micro CV cell, IDA measurment |
| Ag/AgCl ink, 2 mL | A-011464 | surface resistance: 0.2 Ω/sq/25.4 µm viscosity: 50,000 ±10,000 CP @21.1 °C flash point: 82 °C | ||
| RHEK Reversible hygrogen electrode kit: | A-013373 | |||
| – RHE Reversible hydrogen electrode (length: 84 mm) | A-013374 | |||
| – RHEK accessories kit (Tubing clamp, Silicone tube, O-ring, female luer fitting, disposable syringe) | A-013378 | |||
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high temperature heat shrink PTFE (20 cm, ID 3.2mm) | 092-VYC3 | Only compatible with: A-012167, A-012171, A-012177 | ||
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + low temperature heat shrink polyolefin (20 cm, ID 3.2mm) | 092-VYC3A | Only compatible with: A-012167, A-012171, A-012177 | ||
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high temperature heat shrink PTFE (20 cm, ID 4.8mm) | 092-VYC5 | Only compatible with A-012168, A-012172 |
Aqueous media
Various electrodes are offered using either ceramics or porous glass as material for the junction.
| Options | Catalog No. |
| RE-PV preservative vial for reference electrode, 10 mL: | A-012108 |
| Bridge tube Ø 9.0 mm (2 pieces) | A-012177 |
| Bridge tube Ø 9.0 mm (22 pieces) | A-012307 |
| Double junction chamber kit (length: 150 mm): | A-013375 |
| – Double junction chamber | A-013376 |
| – O-ring | |
| – PTFE Cap for double junction chamber | A-013377 |
| – Pt counter electrode | A-002222 |
Non-aqueous media (Ag/Ag+)
To avoid electrolyte leakage or concentration due to evaporation during storage or transport, the electrolyte is separated from the body. This gives the possibility to fill it regularly.
| Catalog No. | Junction | Electrolyte | Purpose | |
| RE-7 non aqueous reference electrode (Ag/Ag+ ), (length: 81mm, OD 6 mm) | A-012171 | IPPG* | Ag/Ag+ /ACN**/TBAP*** | CV |
| RE-7S non aqueous reference electrode (Ag/Ag+ ), (length: 52 mm, OD 4.5 mm) | A-012172 | IPPG* | Ag/Ag+ /ACN**/TBAP*** | SECM |
| RE-7VT non aqueous reference electrode (Ag/Ag+) with polymethyl pentene body | A-013489 | Ceramics | Ag/Ag+ /ACN**/TBAP*** | flow cell |
| * Ion Permable Porous Glass ** Acetonitrile | ||||
| *** Tetra Butyl Ammonium Perchlorate | ||||
| Spare parts | Catalog No. |
| Electrolyte solution (10 mL) | A-012549 |
| PTFE cap with Ag wire (for RE-7) | A-012057 |
| PTFE cap with Ag wire (for RE-7S) | A-012058 |
| Sample holder 6 mm diameter (for RE-7) (2 pieces) | A-012176 |
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high-temperature heat shrink PTFE (20 cm, ID 3.2mm). Only compatible with: A-012167, A-012171, A-012177 | 092-VYC3 |
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high-temperature heat shrink PTFE (20 cm, ID 4.8mm). Only compatible with: A-012168, A-012172 | 092-VYC5 |
| Options | Catalog No. |
| RE-PV preservative vial for reference electrode, 10 mL | A-012108 |
| Bridge tube Ø 9.0 mm (2 pieces) | A-012177 |
| Bridge tube Ø 9.0 mm (22 pieces) | A-012307 |
Specifications and ordering information
| Catalogue number | Junction | Electrolyte | Purpose | |
| RE-1B reference electrode (Ag/AgCl – length: 78 mm, OD: 6 mm) | A-012167 | IPPG | 3 M NaCl | SVC-2, SVC-3, VC-4, bulk electrolysis, RRDE-3A, flat cell |
| RE-1S reference electrode (Ag/AgCl – length: 52 mm, OD: 4.5 mm) | A-012168 | IPPG | 3 M NaCl | SECM |
| RE-1BP reference electrode (Ag/AgCl – length: 52 mm, OD: 6 mm) | A-013613 | Ceramics | 3 M NaCl | SVC-2, SVC-3, VC-4, bulk electrolysis, RRDE-3A, EQCM, flat cell |
| RE-1CP reference electrode (Ag/AgCl – length 92 mm, OD: 6 mm) | A-013429 | Ceramics | Saturated KCl | SVC-2, SVC-3, VC-4, bulk electrolysis, RRDE-3A, flat cell |
| RE-2BP calomel reference electrode (length: 92 mm, OD: 6 mm) | A-013430 | Ceramics | Saturated KCl | SVC-2, SVC-3, VC-4, bulk electrolysis,RRDE-3A, flat cell |
| RE-3VT reference electrode (Ag/AgCl – screw type, poly acetal resin – length: 52 mm, OD: 10 mm) | A-013488 | Ceramics | 3 M NaCl | for flow cell spectroelectrochemical cell SEC-3F |
| RE-2CP reference electrode (Hg/Hg sulfate – length: 92 mm, OD: 6 mm) | A-013431 | IPPG | Saturated K2SO4 | Free from Chloride Ion |
| RE-61AP reference electrode (Hg/HgO – length: 92 mm, OD: 6 mm) | A-013395 | Ceramics | 1 M NaOH | or micro CV cell, IDA measurment |
| Ag/AgCl ink, 2 mL | A-011464 | surface resistance: 0.2 Ω/sq/25.4 µm viscosity: 50,000 ±10,000 CP @21.1 °C flash point: 82 °C | ||
| RHEK Reversible hygrogen electrode kit: | A-013373 | |||
| – RHE Reversible hydrogen electrode (length: 84 mm) | A-013374 | |||
| – RHEK accessories kit (Tubing clamp, Silicone tube, O-ring, female luer fitting, disposable syringe) | A-013378 | |||
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high temperature heat shrink PTFE (20 cm, ID 3.2mm) | 092-VYC3 | Only compatible with: A-012167, A-012171, A-012177 | ||
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + low temperature heat shrink polyolefin (20 cm, ID 3.2mm) | 092-VYC3A | Only compatible with: A-012167, A-012171, A-012177 | ||
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high temperature heat shrink PTFE (20 cm, ID 4.8mm) | 092-VYC5 | Only compatible with A-012168, A-012172 |
Aqueous media
Various electrodes are offered using either ceramics or porous glass as material for the junction.
| Options | Catalog No. |
| RE-PV preservative vial for reference electrode, 10 mL: | A-012108 |
| Bridge tube Ø 9.0 mm (2 pieces) | A-012177 |
| Bridge tube Ø 9.0 mm (22 pieces) | A-012307 |
| Double junction chamber kit (length: 150 mm): | A-013375 |
| – Double junction chamber | A-013376 |
| – O-ring | |
| – PTFE Cap for double junction chamber | A-013377 |
| – Pt counter electrode | A-002222 |
Non-aqueous media (Ag/Ag+)
To avoid electrolyte leakage or concentration due to evaporation during storage or transport, the electrolyte is separated from the body. This gives the possibility to fill it regularly.
| Catalog No. | Junction | Electrolyte | Purpose | |
| RE-7 non aqueous reference electrode (Ag/Ag+ ), (length: 81mm, OD 6 mm) | A-012171 | IPPG* | Ag/Ag+ /ACN**/TBAP*** | CV |
| RE-7S non aqueous reference electrode (Ag/Ag+ ), (length: 52 mm, OD 4.5 mm) | A-012172 | IPPG* | Ag/Ag+ /ACN**/TBAP*** | SECM |
| RE-7VT non aqueous reference electrode (Ag/Ag+) with polymethyl pentene body | A-013489 | Ceramics | Ag/Ag+ /ACN**/TBAP*** | flow cell |
| * Ion Permable Porous Glass ** Acetonitrile | ||||
| *** Tetra Butyl Ammonium Perchlorate | ||||
| Spare parts | Catalog No. |
| Electrolyte solution (10 mL) | A-012549 |
| PTFE cap with Ag wire (for RE-7) | A-012057 |
| PTFE cap with Ag wire (for RE-7S) | A-012058 |
| Sample holder 6 mm diameter (for RE-7) (2 pieces) | A-012176 |
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high-temperature heat shrink PTFE (20 cm, ID 3.2mm). Only compatible with: A-012167, A-012171, A-012177 | 092-VYC3 |
| Set of 10 porous glass frits diameter 2.8 mm (CoralPor™) + high-temperature heat shrink PTFE (20 cm, ID 4.8mm). Only compatible with: A-012168, A-012172 | 092-VYC5 |
| Options | Catalog No. |
| RE-PV preservative vial for reference electrode, 10 mL | A-012108 |
| Bridge tube Ø 9.0 mm (2 pieces) | A-012177 |
| Bridge tube Ø 9.0 mm (22 pieces) | A-012307 |
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