PHValues of Water Completely Explained
Remember the time in 4th grade science class when you did that experiment withlitmus paperand 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. pH valueis known as the indicator foracidity,alkalinity, or neutral. A pH value of 7 means a substance is neutral (or basic). The lower value indicates acidity, and a higher value is a sign of alkalinity. By definition, pH is a measure of the relative amount of free hydrogen and hydroxyl ions in the water. But 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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