Hg/HgO Reference Electrode，Alkaline

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Hg/HgO Reference Electrode，Alkaline

Hg/HgO Reference Electrode，Alkaline

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Hg/HgO Reference Electrode, Alkaline | FrankLab

The FrankLab Hg/HgO Reference Electrode is the industry standard for alkaline electrochemistry, delivering a highly stable and reproducible reference potential in KOH-based electrolytes. It is widely used in OER/HER studies, transition-metal oxide catalysts, zinc–air and alkaline batteries, and alkaline fuel cells.
Constructed from high borosilicate glass and a corrosion-resistant PTFE top, this electrode ensures long service life and excellent chemical stability even under harsh alkaline conditions.

Key Features

• Designed for Alkaline Electrolytes (KOH / NaOH)

Optimized for 0.1–6 M KOH systems:
•Highly stable potential
•Low drift during long-term operation
•Far superior to Ag/AgCl in high-pH environments
Reference potential (typical): +0.098 V vs. NHE in 1 M KOH (25°C) (Adjustable based on internal KOH concentration)

• High Borosilicate Glass Construction

All FrankLab glass electrodes use premium high borosilicate glass, ensuring:
•Excellent resistance to strong alkaline solutions
•High thermal shock tolerance
•Smooth internal surfaces for minimal contamination
•Long structural life in demanding electrochemical conditions

• Low-Drift, Low-Noise Potential

The Hg/HgO redox couple is one of the most stable reference systems for alkaline conditions:
•Reliable for multi-hour and multi-day CA/CP/EIS
•Reproducible data across repeated cycles
•Ideal for kinetics and mechanistic research

• Compatible with a Wide Range of Alkaline Systems

Perfect for:
•OER/HER electrocatalysis
•Nickel, cobalt, iron oxide/hydroxide catalysts
•Zinc–air and alkaline rechargeable batteries
•Alkaline polymer electrolyte fuel cells
•Transition-metal electrochemistry

Technical Specifications

Parameter Value
Type Hg/HgO Alkaline Reference Electrode
Reference System Hg/HgO
Internal Electrolyte KOH (customizable concentrations)
Reference Potential +0.098 V vs. NHE (1 M KOH, 25°C)
Body Material High Borosilicate Glass
Cap Material PTFE
Junction Ceramic or PTFE
Length 65–120 mm
Diameter ~6–9 mm
Temperature Range 0–50°C
Storage Solution KOH solution
Lifetime 6–12 months

Recommended Applications

•Oxygen evolution reaction (OER)
•Hydrogen evolution reaction (HER)
•Nickel/iron/cobalt-based catalyst evaluation
•Zn–air batteries, alkaline electrolyzers
•Alkaline ORR and redox chemistry
•Long-term electrochemical stability testing
The Hg/HgO electrode is widely regarded as the gold standard reference for alkaline media.

Customization Available (Fully Customizable by FrankLab)

FrankLab can customize all dimensions and chemical configurations to suit advanced experimental setups.

Customizable Options

•Electrode length & diameter
•Junction type (ceramic, PTFE, ultra-low-leakage)
•Internal KOH concentration (0.1 M, 1 M, 3 M, 6 M, or custom)
•Body angle (straight, 30–120° bent for compact reactors)
•Microcell/narrow-tip versions
•Special caps or adapters for PEC cells, flow cells, H-type reactors
•Salt-bridge compatibility

FrankLab returns a recommended design + quotation within 24 hours.

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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