[Jewelry making - Article 01461] - Re: [Orchid] Why Hydrofluoric acid is so dangerous

[John Donivan]

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>     The definition of diffusion being the movement of molecules from a
>     region of high concentration to a region of low concentration, 

    No, Helen, you are correct, and I appreciate the enlightenment, and
    I often point out that I'm just a chemistry buff (and an element
    buff, too), not a real chemist. But as you also say, the point is
    that it is not just easily absorbed in the skin, but especially
    easily. As for the dental discussion, that I WILL leave to the pros,
    except that my own take as a consumer and human is that the proof is
    in the pudding - if fluoridation were so hazardous we would know by
    the people lined up in ER's in the last 40 years. It's well known
    that fluorides are toxic at some levels, depending on what fluoride,
    but the controversy about toothpaste seems a bit shrill to me, at
    this stage. Again, just a consumer, not a dentist. I'll point out,
    for any who didn't make the connection, that I started this thread
    coming off of the "How to remove vitreous enamel" thread - not just
    out of nowhere. 

http://www.donivanandmaggiora.com
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