Skip to content

Reference Electrodes

Reference Electrodes selections provide options for chemistry and form factor.

 
  • Highlights +


    • 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 +


    Reference Electrode Comparison Table

     Specifications K0077
    K0265
    RDE0020, RDE0024, & RDE0022  219811  G0093 
    Chemistry Saturated Calomel Electrode (SCE)  Ag/AgCl Ag/AgCl Hg-HgO Hg-HgSO4
    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 KCl 
    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 +


    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 Glassfrit on the end
    • Saturated Potassium Chloride filling solution

    Reference-Electrode 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 in which the use of the saturated calomel electrode would be unsatisfactory, for example, 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 Glassfrit on the end
    • Saturated Potassium Chloride 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

     
    Reference-Electrode-Tube-Assembly 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.


    Reference-Electrode-Tube-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
    Reference-Electrode-Cap RDE0024 Reference Electrode Cap

    • Ag/AgCl Reference Wire
    • Integrated cable for connection to potentiostat cell cable
    Filling-Solutions RDE0022 AgCl-KCl Filling Solution

    • Saturated in both AgCl and KCl
    • 125 mL

    AgCl-Reference-Electrode 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)

    Vycor-Frits 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

    Polyethelyne-Frits G0194 Polyethylene Frits

    • For use in highly alkaline solutions, pH>10, where Porous Glass frits will dissolve
    • Package of 5
    • 4mm diameter
    • Includes 5 pieces of Teflon heat shrink tubing for mounting of frits

  • How To Guide Documents +

  • Material Safety and Data Sheets MSDS +

  • Options: Frits and Filling Solutions +


    Frits

     Specifications G0300
    G0194
    Chemistry Porous Glass Polyethylene 
    Quantity in Package 5 frits and 5 pieces of Teflon
    heat shrink tubing for mounting
    5 frits and 5 pieces of Teflon 
    heat shrink tubing for mounting
     
    Key Application General use; not compatible with basic solutions (pH > 10)  For use in highly alkaline solutions, pH>10, where Porous Glass frits will dissolve


    Filing Solutions
     Specifications 1601-0167-0  RDE0022
    SL0070 G0155 
    Chemistry  KCl/AgCl Saturated in both AgCl and KCl 3 M NaCl/Saturated AgCl filling solution  Non-aqueous
    0.1 M AgNO3 in 
    Acetonitrile
    Volume  0.5 oz 125 mL    
    Reference Electrode, designed compatibility  K0260 Ag/AgCl Reference Electrode
    (RDE0020, RDE0024, & RDE0022)
    For use in highly alkaline solutions, pH>10, where Porous Glass frits will dissolve K0103 Non-Aqueous Reference Electrode
Request Info

For details on our products and their applications, please submit your contact information with the form below: