Lengthened Saturated Calomel Reference Electrode, Neutral

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Lengthened Saturated Calomel Reference Electrode, Neutral

Lengthened Saturated Calomel Reference Electrode, Neutral

Product Description
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A Stable, Widely Adopted Reference Standard for Aqueous Electrochemistry
The FrankLab Saturated Calomel Reference Electrode (SCE) is a classic and highly stable aqueous reference electrode based on the Hg/Hg₂Cl₂ (calomel) redox couple in saturated KCl solution. With excellent potential reproducibility, low drift, and robust chemical stability, it remains a benchmark reference for voltammetry, corrosion analysis, electrocatalysis, and kinetic studies.
Engineered for laboratories requiring maximum stability, precision, and reference consistency across long-term experiments.

Key Features

• Highly Stable and Well-Defined Reference Potential

•Standard potential: +0.241 V vs. NHE at 25°C
•Very low drift over time
•Ideal for quantitative kinetic studies and long-duration measurements

• Saturated KCl Internal Electrolyte

•Ensures stable activity of chloride ions
•Provides well-defined and highly reproducible electrode potential
•Fast equilibrium response after immersion

• Robust and Corrosion-Resistant Construction

•Glass body with strong chemical resistance
•PTFE cap for enhanced durability
•Porous ceramic or PTFE junction providing stable ionic conduction

• Low Leakage & Low Noise Performance

•Optimized junction minimizes contamination of the test solution
•Produces highly stable baseline for CV, EIS, and corrosion tests

• Broad Compatibility

•Suitable for almost all aqueous electrochemical systems
•Compatible with FrankLab glass cells, H-type cells, PTFE cells, and PEC cells
•Recommended for corrosion, HER/OER, ORR, and battery half-cell studies

Technical Specifications

Parameter Value
Electrode Type Saturated Calomel Electrode (SCE)
Reference Couple Hg/Hg₂Cl₂
Internal Electrolyte Saturated KCl
Reference Potential +0.241 V vs. NHE (25°C)
Body Material Borosilicate Glass
Cap Material PTFE
Junction Type Porous ceramic / PTFE
Length ~65–100 mm (depending on model)
Diameter ~6–9 mm
Operating Temperature 0–50°C (Calomel limit)
Storage Solution Saturated KCl
Expected Lifetime 6–12 months under proper use

Usage Notes & Safety

• Temperature Limit ≤ 50°C

SCE contains mercury; operating above 50°C can cause potential drift and internal pressure risks.

• Never use in non-aqueous solvents

Chloride exchange can produce large potential errors; use via salt bridge if non-aqueous tests are required.

•Avoid oxidizing environments

Strong oxidizers may degrade the calomel system.

• Store in saturated KCl

Maintains junction hydration and prevents drift.

• Complies with laboratory mercury handling standards

Follow standard disposal and environmental safety protocols.

Typical Applications

•High-precision cyclic voltammetry (CV) and linear sweep voltammetry (LSV)
•Electrochemical impedance spectroscopy (EIS)
•Corrosion and polarization curve studies (Tafel / E–log i)
•Electrocatalyst performance evaluation in aqueous electrolytes
•Battery material testing and redox chemistry mechanistic studies
•Teaching laboratories requiring stable reference standards

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. 

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