Laboratory Supplies
Laboratory Supplies
Laboratory Supplies

Ag/AgCl Reference Electrode, Alkaline, Neutral

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Laboratory Supplies

Ag/AgCl Reference Electrode, Alkaline, Neutral

Product Description
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FrankLab Ag/AgCl Reference Electrode

Stable, Reliable, and Laboratory-Grade Reference for Aqueous Electrochemistry
The FrankLab Ag/AgCl Reference Electrode is engineered to deliver a stable and reproducible reference potential for high-precision electrochemical measurements. Pre-filled with saturated KCl and built with chemically resistant materials, it is widely used across aqueous CV, LSV, EIS, corrosion studies, electrocatalysis, and energy-conversion research.
Designed for academic and industrial labs demanding accuracy, reliability, and long-term stability.

Key Features

• Highly Stable Reference Potential

Ag/AgCl / saturated KCl provides a well-defined and widely adopted reference potential:
•+0.197 V vs. NHE at 25 °C
•Excellent long-term stability under proper maintenance

• Ready-to-Use, Pre-Filled Design

Each electrode is filled with saturated KCl to ensure:
•Fast equilibration
•Low drift
•Repeatable electrochemical response

• Chemically Resistant Construction

•Glass body ensures excellent optical and chemical stability
•PTFE cap provides strong corrosion resistance
•Ceramic or PTFE porous junction offers low electrolyte leakage and high stability

• Low Junction Potential & Leakage

Optimized junction structure ensures:
•Smooth ionic contact
•Low noise in CV/LSV/EIS
•Minimal contamination of the working electrolyte

• Compatible with Most Electrolytic Cells

Fits standard electrode holders and is compatible with:
•Borosilicate glass cells
•PTFE cells
•Quartz photoelectrochemical cells
•H-type two-chamber cells
•Flow cells (with salt bridge)

• Easy Maintenance & Long Service Life

•Refillable internal solution
•Replaceable KCl electrolyte
•Designed for months to years of laboratory use

Technical Specifications

Parameter Value / Options
Electrode Type Ag/AgCl reference electrode
Internal Electrolyte Saturated KCl (~3–3.5 M)
Standard Potential +0.197 V vs. NHE (25°C)
Body Material Glass
Cap Material PTFE
Junction Type Porous ceramic or PTFE
Length 65–100 mm (model dependent)
Diameter ~6–9 mm
Temperature Range RT to 60°C
Storage Solution 3 M KCl
Lifetime 6–12 months under proper use

Typical Applications

•Cyclic voltammetry (CV) and linear sweep voltammetry (LSV)
•Electrochemical impedance spectroscopy (EIS)
•Electrocatalyst testing (HER/OER/ORR/CO₂RR in aqueous media)
•Corrosion studies on metals and alloys
•pH-dependent kinetic studies
•Education and teaching laboratories

Usage Notes

• Always keep the junction immersed in KCl solution when stored.

Dry junctions lead to unstable potential and slow response.

•Avoid use in strong oxidizers

(e.g., concentrated HNO₃) to prevent degradation.

• For non-aqueous systems

Use through a salt bridge (e.g., glass capillary with KCl-saturated agar) to avoid contamination.

• If potential drifts

Replace internal KCl and soak the electrode in fresh KCl for several hours.

Custom lengths, junction types, and salt-bridge designs available upon request. Send us your cell dimensions or experiment details for recommendations.
For Custom Orders or Inquiries
If you have custom requirements or any additional questions, feel free to contact us:
Email: support@franklab.shop

Why Choose FrankLab?
FrankLab Focused on electrochemical & research materials
•Stable quality for repeatable experiments
•Flexible customization capability
•Trusted by universities, institutes, and industrial R&D labs

 

FrankLab offers worldwide shipping.Orders are normally shipped from our facility in Hangzhou, China within 1-2 business days after the payment is made. It is very important that the correct shipping address is entered at checkout. We are not responsible for incorrect or undeliverable addresses.

 

Shipping Fees

Orders below USD 499 : Shipping fee of USD 14.90

Orders USD 499 and above: Free worldwide shipping

 

Large Orders & Bulk Discounts

For orders over USD 3,000, please contact our customer support team to check special pricing or potential bulk discounts before placing your order.

IMPORTANT: All goods must be inspected immediately upon delivery. Any shipping damage, missing items, or product defects must be reported to both Franklab team and the shipping carrier within 24 hours of delivery. Failure to report issues within this timeframe may result in your claim being denied. Please retain all original packaging materials, as they may be required for filing a damage claim. 

Contact Us

For shipping, returns, or bulk order inquiries, please contact:
support@franklab.shop

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