Click below to learn about the pH scale.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
pH Level 1
Example:
Extremely Acidic
Battery Acid
pH Level 2
Example:
Very Acidic
Gastric Acid
Low-pH water will corrode or dissolve metals and other substances.
Low-pH water will corrode or dissolve metals and other substances.
pH Level 3
Example:
Very Acidic
Hydrochloric Acid
pH Level 4
Example:
Moderately Acidic
Soda
pH Level 5
Example:
Moderately Acidic
Soda
pH Level 6
Example:
The human body self-regulates its pH at 7.4
Slightly Acidic
Black Coffee
pH Level 7
Example:
The human body self-regulates its pH at 7.4
Neutral
Pure Water
pH Level 8
Example:
The human body self-regulates its pH at 7.4
Slightly Alkaline
Sea Water
pH Level 9
Example:
Slightly Alkaline
Baking Soda
pH Level 10
Example:
Moderately Alkaline
Milk of Magnesium
pH Level 11
Example:
Moderately Alkaline
Ammonia
pH Level 13
Example:
Very Alkaline
Bleach
High pH causes a bitter taste. Water pipes and water-using appliances become encrusted with deposits.
pH Level 12
Example:
Very Alkaline
Soapy Water
pH Level 14
Example:
High pH causes a bitter taste. Water pipes and water-using appliances become encrusted with deposits.
Extremely Alkaline
Drain Cleaner
The human body self-regulates its pH at 7.4
The human body self-regulates its pH at 7.4
Low-pH water will corrode or dissolve metals and other substances.