How to determine the pH of hydrogen peroxide
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Hydrogen peroxide, commonly known as hydrogen peroxide solution, exhibits strong oxidizing properties in acidic environments. There is a significant difference between the values obtained by using pH test strips and those measured with a pH meter; which value should be chosen?
When in use, dilute sulfuric acid is added to maintain acidity
Do you know what its pH range is?
The test strip is likely inaccurate; the color change on the strip or indicator is due to dyes, while the strong oxidizing property of hydrogen peroxide causes the strip to change color
If I remember correctly, it should be ph2
Thank you, the value I measured with a pH meter is around 2
The pH of hydrogen peroxide cannot be measured using pH test strips, as its strong oxidizing properties can cause inaccurate color readings or even lead to fading due to oxidation. The product standard for hydrogen peroxide should include a test method for determining its pH, and the measurement must be carried out in accordance with that standard.
Okay, actually I just want to know the approximate pH value of 30% hydrogen peroxide, as a range
Then you can simply use a pH meter to measure it; hydrogen peroxide has a weakly acidic nature.