brady said...
There's a reason "mercurochrome" starts with "mercur". Do you really want to put heavy metals onto an open wound? Sure it kills the bugs, but it does a few other things too
It's that kind of superstitious nonsense that causes all sorts of trouble. Uneducated bleeding hearts who don't like the name of something so they begin the campaign of "pooled ignorance" to get innocuous (or even good) stuff banned. Trouble is that they often succeed because the pollies are usually just as ignorant of the facts. Mercurochrome and Gentian Violet are 2 examples straight off. Fortunately someone with a basic high school education has had another look and mercurochrome's now back off the banned list and gentian violet might soon follow.
A little yr8 chemistry wouldn't go astray. For example:
Take some exceptionally poisonous gas (Cl) and some extremely dangerous metal (Na) and you get?
Take some extremely combustible dangerous gas (H) and the ultimate oxidiser (O) and you get?
When 2 or more elements combine to form a compound you get a completely different substance with completely different properties. There's NO free mercury (Hg) in mercurochrome, just as there's no free chromium (Cr) in mercurochrome.
Sorry Brady. Don't take it personally - just one of my "corns"