PH Values of Water Completely Explained
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Remember the time in 4th grade science class when you did that experiment with litmus paper and it turned red when you put it on a lemon and blue in soapy water? That was probably your first experiment into the wondrous science of pH.
The indicator for acidity, alkalinity, or basic is known as the pH value. A pH value of 7 means a substance is neutral. The lower value indicates acidity, and a higher value is a sign of alkalinity. To better understand the range in pH, take a look at these examples:
- Apple Juice - 3
- Orange Juice - 3.5
- Coffee - 5.5
- Milk - 6.2
- Baking Soda - 8.5
- Soapy water - 10
- Bleach - 12
In addition, many of the foods we eat contain an acidic pH because of their bacteria killing functions.
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