Reference Electrodes
Princeton Applied Research reference electrodes offer precision and stability for accurate electrochemical measurements. Compatible with various electrochemical setups, including RDE, RRDE, and RCE, they ensure reliable performance in corrosion, energy storage, and sensor development applications.
🟦 Reference Electrodes
Princeton Applied Research Reference Electrodes are precision instruments designed for accurate and stable electrochemical measurements. They are compatible with various electrochemical cells, including rotating disk electrodes (RDE), ring-disk electrodes (RRDE), and cylinder electrodes (RCE). These reference electrodes are essential for controlling and measuring the potential of working electrodes in electrochemical experiments.
Typically, these reference electrodes are constructed from materials like Ag/AgCl or saturated calomel, ensuring reliable performance across a range of electrochemical applications. They are designed to be compatible with standard electrode systems, facilitating seamless integration into your experimental setup.
Whether you’re conducting corrosion studies, energy storage research, or sensor development, Princeton Applied Research reference electrodes provide the precision, stability, and flexibility necessary for advanced electrochemical testing.
➡️ Options of chemistry for SCE, Ag/AgCl, Hg-HgO, Hg-HgSO4
➡️ Options for form-factor of 14/20 ground glass and 4-mm narrow body
➡️ Replacement frits and filling solutions available
Reference Electrode Comparison Table
| Specifications | K0077 | K0265 | RDE0020, RDE0024, & RDE0022 | 219811 | G0093 |
|---|---|---|---|---|---|
| Chemistry | Saturated Calomel Electrode (SCE) | Ag/AgCl | Ag/AgCl | Hg-HgO | Hg-Hg2SO4 |
| Form Factor | 14/20 ground glass 3.5 inches long | 4-mm wide 9-cm long | 14/20 ground glass 3.5 inches long | 5.5 inches long | 14/20 ground glass 3.5 inches long |
| Designed Cell Compatibility | K0047, RDE0018 | K0235, K0264 | K0047, RDE0018 | K0047, RDE0018 | |
| Frit (Replacement) | 4 mm Porous Glass (G300) | 4 mm Porous Glass (G300) | 4 mm Porous Glass (G300) | 7mm Porous plastic frit | 4 mm Porous Glass (G300) |
| Filling Solution | Saturated KCl filling solution | 3 M NaCl/Saturated AgCl filling solution | Saturated in both AgCl and KCl | 20% (4.2M) KOH filling solution | Saturated K2SO4 |
| Key Application, Unique Feature | General use, ASTM standards | General laboratory use, non-Mercury | Non-Mercury and K0047, RDE0018 compatible | Plastic, ideal for alkali or fluoride media | Non-chloride; chloride analysis, silver analysis |
Reference Electrode Family
K0077 Saturated Calomel Reference Electrode
➡️ Compatible with RDE0018 Analytical Cell Kit & K0047 Corrosion Cell Kit
➡️ 3.5″ long
➡️ 14/20 Standard Taper Joint
➡️ 4 mm Porous Glass frit on the end
➡️ Saturated Potassium Chloride filling solution
G0093 Mercury-Mercurous Sulfate Reference Electrode
This reference electrode is identical in physical configuration to the K0077 reference electrode except that the G0093 contains a mercury-mercurous sulfate inner element immersed in a saturated potassium sulfate solution. The electrode is employed in situations where the use of the saturated calomel electrode would be unsatisfactory, such as chloride analysis, silver analysis, etc.
➡️ Compatible with RDE0018 Analytical Cell Kit & K0047 Corrosion Cell Kit
➡️ 3.5″ long
➡️ 14/20 Standard Taper Joint
➡️ 4 mm Porous Glass frit on the end
➡️ Saturated Potassium sulfate filling solution
219811 Mercury-Mercury Oxide Reference Electrode
All plastic (PTFE/PP) configuration consisting of 4.24M potassium hydroxide solution. This electrode is ideal for alkali or fluoride media and is suitable for battery, energy, and electrochemical applications
➡️ 5.5″ long
➡️ 7mm Porous plastic frit on the end
➡️ 20% Potassium Hydroxide filling solution
K0103 Non-Aqueous Reference Electrode
Incorporates a 14/20 standard taper joint for use with the K0065 reference electrode bridge tube. Inner element (not shown) is a silver wire immersed in Acetonitrile containing 0.1 M AgNO3. This electrode is employed in applications involving non-aqueous supporting electrolytes such as Benzene-Methanol, Acetonitrile, and DMF
➡️ Compatible with RDE0018 Analytical Cell Kit & K0047 Corrosion Cell Kit
➡️ 14/20 Standard Taper Joint
➡️ 4mm Porous Glass frit on the end
Ag/AgCl Reference Electrode (RDE0020, RDE0024, & RDE0022)
➤ Consists of 3 individual parts that must be ordered separately to form a complete reference electrode assembly.
RDE0020 Reference Electrode Tube Assembly
➡️ Compatible with RDE0018 Analytical Cell Kit & K0047 Corrosion Cell Kit
➡️ 14/20 Standard Taper Joint
➡️ 4 mm Porous Glass frit on the end
RDE0024 Reference Electrode Cap
➡️ Ag/AgCl Reference Wire
➡️ Integrated cable for connection to potentiostat cell cable
RDE0022 AgCl-KCl Filling Solution
➡️ Saturated in both AgCl and KCl
➡️ 125 mL
K0265 Ag/AgCl Reference Electrode
➡️ Compatible with K0235 Flat Cell Kit & K0264 Micro-Cell Kit
➡️ 3 M NaCl/Saturated AgCl filling solution (sold separately – part number SL0070)
➡️ 4 mm Porous Glass frit on the end
➡️ 9 cm long (glass body)
G0300 Porous Glass Frits (Replaces G0100 Vycor Frits)
➡️ Package of 5
➡️ 4 mm diameter
➡️ Includes 5 pieces of Teflon heat shrink tubing for mounting of frits
G0194 Polyethylene Frits
➡️ For use in highly alkaline solutions, pH > 10, where Porous Glass frits will dissolve
➡️ Package of 5
➡️ 4 mm diameter
➡️ Includes 5 pieces of Teflon heat shrink tubing for mounting of frits
