Acids and Alkalis

Many household items are either acids or alkalis and are not hazardous, for example; vinegar, soap, lemon juice, toothpaste.

Some acids and alkalis are stronger and must be handled with care. The strength of an acid or alkali is measured on the ph scale. Neutral chemicals are ph 7, those measuring less than 7 are acid, whilst those measuring more than 7 (up to 14) are alkaline.

Adding an acid to and alkaline (and
vice versa) will neutralise it.

Did you know that the liquid in your
stomach is an acid. The acid in your
stomach helps you digest your food.

About Chemicals
Acids and Alkalis