Double Salt Bridge Saturated Calomel Electrode

Product Description

The Double Salt Bridge Saturated Calomel Electrode enhances reference stability with its innovative dual-junction design. It features an outer salt bridge chamber that isolates the reference electrolyte from the test solution, significantly reducing chloride leakage and preventing junction fouling. This makes it highly reliable for sensitive analyte systems, long-term electrochemical experiments, and environments where contamination control is critical. Like all saturated calomel electrodes (SCE), it provides a stable potential of approximately +0.244 V vs NHE at 25 °C, making it a trusted choice for reproducible measurements.

Key Features

• Double-junction construction: Second salt bridge minimizes ion crossover and contamination.

• Stable and precise potential: Maintains classic SCE performance with ~+0.244 V vs NHE at 25 °C.

• Low-maintenance design: Reduced risk of electrode poisoning and sample fouling.

• Extended compatibility: Ideal for systems with low-chloride content or chloride-sensitive analytes.

• User serviceability: Easy replacement or cleaning of frits when resistance increases.

• Versatile application: Suitable for academic research, electrochemistry labs, and industrial test systems.

Best Practices

• Regularly monitor junction flow (drop rate) to ensure consistent performance.

• Keep both salt bridges properly filled with the recommended electrolytes.

• Replace frits or clean the junction when impedance rises.

• For chloride-restricted environments, consider alternatives such as Ag/AgCl or Hg/Hg₂SO₄ reference electrodes.

Why Choose This Electrode?

This Double Salt Bridge Saturated Calomel Electrode provides the stability of a traditional SCE with enhanced protection against contamination, ensuring accuracy in electrochemical testing. Whether you are running corrosion studies, pH measurements, or sensitive electroanalytical experiments, it offers reproducibility and extended service life.