Question: Many dyes used in food products are classified a hazardous chemicals in their pure form. Why then can they be safely used in those food products?
In their pure form many dyes are either acidic or basic
and therefore corrosive. Or perhaps they might be considered
to be carcinogenic.
In foods, dyes are usually on the
order of only 10^-5 M (0.00001 M) or less.
10^-4 M would be about the concentration of a dye in
a very colored drink like Gatorade or Kool-Aid.
At this concentration the toxic properties are ...
The safety of dyes used in food industry is discussed.