Advantages and disadvantages of pH indicators
The advantages of pH indicators are as follows.
- This pH determination technique is quick, inexpensive and easy.
- They quickly determine the nature of the sample, whether it is acidic or basic.
- Saving time and money produces quick results.
- It's quick and easy to use than pH meter.
- pH indicators are very easy to use, just add a few drops to the sample.
The disadvantages of pH indicators are as follows.
- The sample solution should be colorless enough to clearly observe indicator color changes.
- An indicator is not functional above its pH range because the indicator does not change color at these pH values.
- If the substance or sample is contaminated, the color may be incorrect.
- Acid-base indicators show only one or two color changes.
- Indicators measure pH with low accuracy, they only indicate the acidity or alkalinity of the sample and not the exact pH.
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