Item

pH Value

Acid rain

5.2

Ammonia water

11.6

Apple juice

2.9 – 3.3

Baking soda

8.0

Borax

9.2

Distilled water

7.0

Drinking water

6.5 – 8

Eggs

7.6 – 8

Grapes

3.5 – 4.5

Grapefruit juice

3 – 3.3

Human blood

7.35 – 7.45

Human saliva

6.3 – 6.6

Hydrochloric acid

0.1

Lemon juice

2.3

Lime

1.8 – 2

Limewater

12.4

Milk of magnesia

10.5

Normal rain

5.7

Orange juice

3 – 4

Sea water

7.36 – 8.21

Soda lye

14.0

Sour milk

4.3 – 4.5

Stomach juice

1 – 3

Sulfuric acid

0.3

Tomato & tomato juice

4.2

Vinegar

2.4 – 3.4

White bread

5 – 6