Describes the amount of acid in a substance.
What is an Acid?
An acid is a chemical that gives off hydrogen ions in water and forms salts by combining with certain metals.
pH and Acidity
Acidity is measured on a scale called the pH scale.
On this scale, a pH value of 7 is neutral, and a pH value of less than 7 to 0 shows increasing acidity.
Latest research - Acidity