What
You Should Know about the pH Scale
The pH scale determines the acidity or alkalinity of a solution.
The scale ranges from zero to 14. The zero end of the scale
is where solutions are very acidic. Moving up around two on
the scale is the rating for lemon juice. Around three is vinegar,
beer, and cola. Pure water has a pH of seven, which is neutral.
As you
move up the scale from seven, solutions become more alkaline
(some chemicals in this range are commonly referred to as
bases). Milk of magnesia has a pH of 10, household ammonia
has a pH of 11, and household bleach has a pH of 12. Oven
cleaners fall between 13 and 14. Solutions at either end of
the scale are extremely corrosive.
It is important to know about the pH scale because improperly
using cleaners with too low or too high of a pH can ruin surfaces.
In addition, mixing low pH solutions with high pH solutions
is dangerous and can even be deadly. Employees need to be
aware that mixing chemicals together to make their own "super"
cleaning solution is never a good idea.
|