16
0,Hydrochloric Acid
1.0,Battery Acid
2.0,Lemon Juice
2.2,Vinegar
3.0,Apples
4.0,Wine & Beer
4.5,Tomatoes
6.6,Milk
7.0,Pure Water
7.4,Human Blood
8.3,Baking Soda
10.5,Milk of Magnesia
11.0,Ammonia
12.4,Lime (Calcium hydroxide)
13.0,Lye
14.0,Sodium Hydroxide