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 numberJunctionElectrolytePurpose
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-013431IPPG
Saturated K2SO4
Free from Chloride Ion
RE-61AP reference electrode (Hg/HgO – length: 92 mm, OD: 6 mm)
A-013395Ceramics
1 M NaOH
or micro CV cell, IDA measurment
Ag/AgCl ink, 2 mL
A-011464surface 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-VYC3AOnly 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™) + low-temperature heat shrink PVDF (20 cm, ID 3.2mm). Only compatible with: A-012167, A-012171, A-012177 092-VYC3A
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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