Bluelab KCl Storage Solution is designed to increase the response time and lifetime of Bluelab pH pens and pH probes.
pH probes are sensitive glass instruments which age through normal use. The life and performance of pH probes is significantly reduced when the glass probe tips are allowed to dry out.
Bluelab pH Pens and pH Probes are supplied with a storage cap to cover the tip of the pH probe. This storage cap should be filled with a few drops of KCL solution to keep the glass probe tip moist at all times.
Probes that are stored in sample pots or are continuously immersed in tank solutions should be removed from that environment and fully immersed in KCL solution overnight on a monthly basis to maintain performance.
If a pH probe happens to dry out then the probe tip should be immersed in KCL solution for 24 hours and then recalibrated.
How the KCL Solution works
The KCL solution (Potassium Chloride) prevents the glass pH probe tip from drying out, which would reduce its sensitivity to (H+) hydrogen ions. Keeping it moist prevents damage and ensures optimal performance.
pH probes operate on the movement of ions between the reference electrode inside the pH probe and the nutrient solution being measured.
The KCL solution provides a stable ionic environment, ensuring a consistent ionic exchange.
It also prevents contamination of the reference electrode which can result in unstable readings, incorrect readings, or slow response times.
The pH probe should not be stored in Reverse Osmosis water, distilled water or rainwater as these demineralised water sources leach ions from the glass pH probe membrane and from the internal KCL reference solution inside the pH probe.
If the pH probe tip is stored in other types of solutions, this can also create an unstable osmotic pressure which can cause ingress of the solution into the pH probe, thereby contaminating it, or leaching of the KCL reference solution out of the pH probe.
By storing the pH probe tip in Bluelab KCL solution you prevent contamination, preserve its accuracy, and extend the lifetime of the pH probe well beyond its warranty period.
120ml bottle of KCL Storage Solution NZ$22.50 + GST
250ml bottle of KCL Storage Solution NZ$37.50 + GST
120ml bottle of KCL Storage Solution – Carton of 6 – NZ$135.00 + GST
250ml bottle of KCL Storage Solution – Carton of 6 – NZ$225.00 + GST
18ml KCL Storage Solution Sachets – Carton of 30 – NZ$69.00 + GST
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