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

Aqueous media

Various electrodes are offered using either ceramics or porous glass as material for the junction.

 

Catalog No. 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 For alkaline solution
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
for micro CV cell, IDA measurment
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 2.8 mm glass frit (CoralPor™) with PTFE heat shrink (200 mm) 092-VYC3
Set of 10 porous 4 mm glass frit (CoralPor™) with PTFE heat shrink (200 mm) 092-VYC4

 

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 2.8 mm glass frit (CoralPor) with PTFE heat shrink (200 mm) 092-VYC3

 

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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