A deadly rinse: The dangers of hydrofluoric acid
From Volume 23, Issue 1 - January 1999
A popular carwash ingredient, Hydrofluoric Acid:
"HF is not like other highly corrosive acids. Mix it with equal parts of water (as many overzealous operators do when cleaning bay walls), spill a little on your unprotected hand and you won't even feel any pain as it begins to burn through your skin, searching for the calcium in your bones.
Because of the fluorine's numbing effect, it could be a full day before you begin to notice that your soft tissue and bone are being eaten away by this toxic chemical that has two favorite sources of calcium - bones and concrete."
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