The concentration of the Chloride ion gives a quick measurement of salinity of water samples. Use the Chloride ISE to measure chloride levels in ocean saltwater or salt in food samples.
The Chloride ISE has a combination-style, non-refillable, gel-filled electrode. Unlike other ISEs available from Vernier, the Chloride ISE has a solid-state membrane that does not need to be replaced.
Important: Ion-Selective Electrodes require good chemical technique and careful calibration to obtain accurate results; they are not recommended for middle school or elementary students.
View the Chloride Ion-Selective Electrode user manual
- Range: 10 to 20,000 mg/L or ppm
- Accuracy: ±10% of full scale (calibrated 10 to 1000 mg/L)
- pH range: 2 to 12
- Interfering ions: CN–, Br–, I–, S2-
- Electrode slope (log voltage vs. concentration): –56 mV/decade
- Electrode resistance: 1 to 4 MΩ
- Temperature range (can be placed in): 0 to 50°C (no temperature compensation)
- Minimum immersion: 1.1 inch
- Electrode length: 155 mm
- Body diameter: 12 mm
- Cap diameter: 16 mm
- Cable length: 100 cm
Experiments and Lab Ideas
Water Quality with Vernier (1)
Includes student instructions, teacher tips, safety information, and sample data.Go to Book Page
Lab Ideas and Innovative Uses
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The Chloride Ion-Selective Electrode may require a compatible interface and software. Choose a platform below to see compatible interface and software options.
The Chloride Ion-Selective Electrode is fully supported with LabQuest 2 (version 2.8), a standalone data logger with built-in graphing and analysis software.
Learn more about LabQuest 2 »
You can also use the Chloride Ion-Selective Electrode with these platforms:
- Vernier Chloride Ion-Selective Electrode
- 30 mL bottle of Chloride Low Standard (10 mg/L)
- 30 mL bottle of Chloride High Standard (1000 mg/L)
- Short-term ISE soaking bottle
- User manual
All prices are for U.S. educators.
Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications. Product usage disclaimer »