Re: inorganic vs organic arsenic

**"* J* R* <l*@hevanet.com>**

  I don't know the specific chemical properties of CCA  versus organic
arsenic.  That's up to a chemist.  I was just saying that the more tightly
bound a poison is, the less likely it is to be toxic in the body.  IF (and I
said IF) CCA is a very stable compound, it could be less toxic than an
organic arsenic compound.  Based just on the chemical properties of Copper,
I would expect it to be a fairly active compound, able to release the
arsenic without heroic efforts.   But with chromium in the mix, I don't
remember enough chemistry to know how stable that molecule would be.  I
would EXPECT it to be not that hard to break apart in the presence of acids,
since it has to be readily available enough to poison organisms that would
attack the treated object.
  In organic compounds, in plant and animal tissues, the general rule is
that the body will tie up toxins in the most stable form it is able  to
produce.  Again, that has to be taken on a case-by-case basis, and doesn't
allow for what the metabolism of another organism can do when it ingests
said compounds.  

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