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Re: [apd] chlorine



In a message dated 98-11-03 03:58:42 EST, you write:

> Someone over the weekend posted that he felt some of the dissolved chlorine 
> in
>  the tap water would react with the organic chemicals in a live aquarium to
>  form carcinogens.  However, every medical journal and environmentalist
>  newsletter I have read that discusses chlorinated organic compunds states 
> that
>  there are NO naturally occuring chlorinated organics.  They are all
>  manufactured.  You might get some interaction causing the formation of
NaCl,
>  CaCl, or some other salt.  But the measurable volume of the chlorine will
>  reduce to its simplest stable form, which is the diatomic chlorine gas
>  molecule.

Chlorine gas does not occur in nature.

Adding Cl2 to water that contains suspended or disolved organic matter
produces chlorinated organic compounds.  Just ask any water treatment plant
about "trihalomethanes".

regards,
bob