[NAFEX] ant colonization of containers
ernestplutko at wiktel.com
Wed Jun 11 11:22:18 EDT 2008
Diatomaceous earth is mostly composed of the silica exoskeletons of
diatoms. It is hazardous to inhale.
---- Original Message ----
From: David.Maxwell at dal.ca
To: nafex at lists.ibiblio.org
Subject: Re: [NAFEX] ant colonization of containers
Date: Wed, 11 Jun 2008 10:35:57 -0300
>> PS, everybody know DE is dangerous to breath?
>I am a physician. I am not sure this statement is valid. It is
>certainly harmless to
>observe it, but do you know where the idea came from? I believe that
>earth is basically the exoskeletons of marine plankton, and is made
>carbonate, the same material that limestone or chalk is made of.
>Might there be a confusion here with silicaceous materials, such as
>the fine white
>sand used for sandblasting (can't think of the name of it at
>present)? Silicon dioxide
>forms an assymetric crystal which (at least according to one theory)
>interacts with the
>earth's magnetic field, generating tiny electrical currents which are
>responsible for its
>provoking fibrosis of the lung tissue - the well known "silicosis",
>seen in hard rock
>Calcium carbonate neither forms asymmeric crystals like silica, nor
>is it nearly as
>insoluble as silica. (I suspect any inhaled limestone particles
>which lodged in the
>lungs would fairly rapidly be dissolved by the body)
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