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pH of Common Chemicals

Acids & Bases

By Anne Marie Helmenstine, Ph.D., About.com

The pH of lemon juice is around 2, making this fruit highly acidic.

The pH of lemon juice is around 2, making this fruit highly acidic.

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Here's a list of the approximate pH of some common chemicals.

Acids
0 - Hydrochloric Acid (HCl)
1.0 - Battery Acid (H2SO4 sulfuric acid)
2.0 - Lemon Juice
2.2 - Vinegar
3.0 - Apples
4.0 - Wine and Beer
4.5 - Tomatoes
6.6 - Milk

Neutral
7.0 - Pure Water

Bases
7.4 - Human Blood
8.3 - Baking Soda (Sodium Bicarbonate)
10.5 - Milk of Magnesia
11.0 - Ammonia
12.4 - Lime (Calcium Hydroxide)
13.0 - Lye
14.0 - Sodium Hydroxide (NaOH)

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