Bluelab KCL pH probe storage 250ml - pH tester storage solution

KCl , or potassium chloride, is a solution for storing and hydrating pH pens and probes
Bluelab pH Probe Storage Solution is a storage solution designed specifically for use with Bluelab pH Pens or Bluelab pH Probes.

The storage solution is used to ensure that the pH probe is maintained in ideal conditions during storage until the probe is not in use.

Typically, most storage solutions for pH probes contain a mixture of potassium chloride (KCl) and water. Some brands may contain small amounts of other ingredients. For this reason, we encourage the use of Bluelab pH Probe KCl storage solutions with all pH probes to avoid contamination from these other ingredients.

Bluelab KCl solution contains only pure KCl , which has the same mixing power as the gel that is in Bluelab pH probes.

For this reason, when you hydrate or store your pH probe in Bluelab KCl solution, it helps to revitalize the KCl reference solution that is in your pH probe. This is because some of the gel in your pH probe can wash away during use - if this happens in storage, however, it means that fresh new KCl solution (from your pH probe storage cap) will replace the solution that has been flushed out of the probe. This means that the probe is almost "revitalized" while stored in KCl solution.
With that in mind, if you store your pH probe in tap water or another solution, then during storage instead of the contaminated KCl being washed out and fresh KCl coming in, instead, your storage solution (either tap water or maybe a pH4 solution ) will go into your probe. This will exacerbate the contamination of the internal reference solution.

Ideally, using fresh KCl in storage ensures that the fresh KCl solution will also enter your pH probe, helping the probe instead of harming it.
Deionized, distilled, pure or RO (reverse osmosis) water should never be used to store or hydrate a pH probe or pen. Pure water will affect the chemical composition of your reference solution in your pH probe and this will cause premature failure of the probe or pen.

We recommend daily use of the pH probe storage solution - a fresh application once a week is recommended (a few drops in the probe storage cap at the end of each week should be sufficient).