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Reference Electrodes

Reference Electrodes selections provide options for chemistry and form factor.

 
Princeton Applied Research - K0077 Saturated Calomel Reference Electrode (SCE) - Front
Princeton Applied Research - K0077 Saturated Calomel Reference Electrode (SCE) - Front
Princeton Applied Research - K0260 Ag/AgCI Reference Electrode - Front
Princeton Applied Research - Saturated KCl / Saturated AgCl Fill Solution

  • 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
    Reference-Electrode 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
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