Test River pH: Make an Indicator at Home

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To test river pH at home, boiling red cabbage can create a natural indicator that changes color based on acidity. The resulting purple water is sensitive to pH levels, making it a useful tool for testing. Participants also mention using juice from "ink weed" berries, which turns green in alkaline conditions. Understanding the river's expected pH and pollution levels can enhance testing accuracy. Homemade indicators provide a practical solution for assessing water quality.
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I need to test the ph of river. I need a method of making an indicator that I can make at home. Please help !
 
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Welcome to PF;
Have you tried googling "make your own ph indicator"?

If you boil red cabbage - the water turns purple - the color is sensitive to pH.
 
Thanks
 
Jason49 said:
I need to test the ph of river. I need a method of making an indicator that I can make at home. Please help !
Do you know approximately what pH to expect? Is the river badly polluted? Is there any animal life present in the water?

I remember making an indicator from the purple juice of "ink weed" berries. It turned green in an alkali, I think.
 
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