Copper Sulfate Reference Electrode

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Copper Sulfate Reference Electrode

Copper Sulfate Reference Electrode

Product Description
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The FrankLab Copper Sulfate Reference Electrode (Cu/CuSO₄) is a widely used reference system in corrosion studies, concrete/steel structure monitoring, soil electrochemistry, environmental testing, and field-based measurements. It provides a stable, reproducible potential, excellent durability, and strong ionic stability in sulfate-based environments.
Constructed with high borosilicate glass, a pure copper internal element, and saturated CuSO₄ electrolyte, this electrode is designed for both laboratory and field use, offering reliable performance over extended periods.

Key Features

• Stable & Well-Defined Reference Potential

The Cu/CuSO₄ redox couple provides:

• Highly stable potential

• Excellent reproducibility in soil and corrosion systems

• Long-term performance in field or laboratory environments

Typical potential (25°C): +0.316 V vs. NHE (in saturated CuSO₄ solution)

• High Borosilicate Glass Body

FrankLab electrodes use premium high borosilicate glass, offering:

•High chemical stability in sulfate electrolytes.

•Excellent resistance to temperature fluctuation.

 

•Smooth surfaces that reduce contamination

 

•Long-term mechanical durability

 

• Corrosion & Environmental Applications

Ideal for:

•Steel rebar corrosion monitoring (reinforced concrete)

•Pipeline and underground structure testing

•Soil electrochemistry

•Cathodic protection systems

•General corrosion analysis in sulfate media

This electrode is frequently used in civil engineering, geochemistry, and corrosion R&D.

• Low-Leakage Porous Junction

Available porous materials:

• Porous glass

• Ceramic junction

• PTFE low-leak variants

Benefits:
  • Stable ionic contact
  • Reduced contamination into soil or liquid media
  • Long-term stability in high-resistance environments

Technical Specifications

Parameter Value
Type Cu/CuSO₄ Reference Electrode
Reference System Cu / CuSO₄
Internal Electrolyte Saturated CuSO₄
Reference Potential +0.316 V vs. NHE (25°C)
Internal Element High-purity copper rod
Body Material High Borosilicate Glass
Cap Material PTFE
Junction Porous glass / ceramic / PTFE
Length 65–150 mm
Diameter ~6–12 mm
Operating Environment Laboratory or field use
Temperature Range 0–50°C
Storage Solution Saturated CuSO₄
Expected Lifetime 6–12 months (depending on use)

Recommended Applications

 Corrosion Monitoring

•Steel in concrete

•Underground steel pipelines

•Marine or coastal structures

•Cathodic protection research

Soil / Environmental Electrochemistry

•Soil potential measurements

•Environmental redox studies

•Geochemical sampling

Laboratory Electrochemistry

•Cu-based redox chemistry

•Sulfate-containing electrolytes

•Non-chloride environments

The Cu/CuSO₄ system is widely preferred where chloride interference must be avoided.

Customization Available (Fully Customizable by FrankLab)

FrankLab provides complete customization for civil engineering labs, corrosion R&D groups, and environmental monitoring applications.

Customizable Options

•Electrode length & diameter

•Porous junction type & porosity

•Internal CuSO₄ concentration

•Copper rod thickness & purity level

•High-durability field version (impact-resistant)

•Sealed or semi-sealed construction

•Angled or bent body for tight spaces

•Adapters for probe holders or soil insertion devices

Submit a Custom Request

You will receive 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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