pH Values of Common Household Materials*

1.0 battery acid (sulfuric acid)

1.8-2.0 limes

2.2-2.4 lemon juice

2.2 vinegar (acetic acid)

2.8-3.4 fruit jellies

2.9-3.3 apple juice, cola

3.0-3.5 strawberries

3.7 orange juice

4.0-4.5 tomatoes

5.6 unpolluted rain

5.8-6.4 peas

6.0-6.5 corn

6.1-6.4 butter

6.4 cow's milk

6.5-7.5 human saliva

6.5-7.0 maple syrup

7.0 distilled water

7.3-7.5 human blood

7.6-8.0 egg whites

8.3 baking soda

9.2 borax

10.5 milk of magnesia

11.0 laundry ammonia

 12.0 lime water

13.0 lye 14.0

 

*CRC Handbook of Chemistry and Physics

© S. Olesik, WOW Project, Ohio State University, 2002.