This is a 500 mL bottle of storage solution for all PASCO pH electrodes. All of the electrodes ship with a small bottle of storage solution (usually 2-4 mL) which can be used indefinitely. But if it spills, dries out or otherwise needs to be refilled, this solution provides a large supply to refill those bottles.
If you choose, you can make your own pH Storage Solution. It requires creating a (or using a pre-made) pH 4 buffer solution and then adding the appropriate amount of potassium chloride. The video below can help guide you through the process.
If in doubt, we recommend using our pH Storage Solution but in either case just be sure to keep your pH electrodes in solution when not using them. If they do dry out, follow the instructions in the manual to rehydrate the glass membrane.
Perform the following experiments and more with the pH Storage Solution.
Visit PASCO's Experiment Library to view more activities.
Students use a pH sensor to explore the effect of excess atmospheric carbon dioxide on water pH.
Students use a pH sensor to test the pH of a set of serial dilutions and make a connection between the pH value (& pOH) of a solution and its hydrogen ion (& hydroxide ion) concentration.
Students predict products of a series of chemical reactions and use a temperature, conductivity, and pH sensor to verify a chemical change.
Students use a pH sensor to investigate how antacid tablets work and use a back titration method to determine how much of the active ingredient is found in one tablet.
Students use a pH sensor to conduct a strong acid and weak acid titration with a strong base.
Students use a pH sensor, conductivity sensor, and temperature sensor to collect evidence that supports their conclusion about whether a chemical or physical change has occurred.
|Electrode Storage Solution Safety Data Sheet||English - 106.79 KB|