pH values of common items

14.0
13.5
household lye
12.6
bleach
12.0

11.5
ammonia
11.0

10.2
milk of magnesia
10.0

9.3
borax
9.0

8.4
baking soda
8.0
sea water
7.4
blood
7.0
distilled water
6.7
milk
6.2
corn
6.0

5.0
boric acid
4.2
orange juice
4.0

3.0

2.8
vinegar
2.2
lemon juice
2.0
1.0

0.3
battery acid
0.0

1 comment:

1. This comparison is perfect! The range of the pH scale is from 0 to 14. The pH of a 1 mol/L HCl is solution is approximately 0 (because of ionic interactions between H2O, H+ and Cl-, the pH is not exactly 0 - see the ionic strength section). Any solution with a pH less than 7 is by definition acidic. Alkaline or basic solutions are those with a pH above 7. while neutral solutions have a pH of exactly 7.

Source: http://phscale.net/