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Assay of ProClay






Just a few comments regarding the ProClay post...

The assay of this clay material might be correct. Remember that almost every
element can be found in any material if one goes low enough. Here at work we use
Millipore's Milli-Q water system on water which has already passed through a RO
system to obtain very high purity water. However, when analysed by very
sensitive equipment we still see lithium at 0.034 ppb, chromium at 0.082 ppb,
zinc at 4.40 ppb, and nickel at 0.50 ppb, etc. If you look for it, you will find
it! When labels show that an element is present at 'trace levels' it only means
that they know it is there, but it is too low to quantify. In this case,
probably below the 'parts per trillion' level....in other words... zero!

Also, the assay of the clay material was probably done on an instrument called
an ICP-MS which can only measure elemental "totals". It can't determine whether,
for example, arsenic was in an inorganic or organic form (organic arsenic is
relatively non-toxic, whereas inorganic arsenic - As3+ and As5+ - is very
toxic). In this material, the arsenic is most likey in the non-toxic organic
form.

One last comment. Lithium, sodium, and cesium do react with water, but only in
their elemental state - that is, in their metallic form. In the clay material,
they are probably present either as salts, oxides, or silicates (i.e. NaCl,
Na2O2, Na2S, CsCl, Cs02, LiGe, Li12Si7, etc).

Peter
Ottawa, Canada


:: Date: Fri, 5 Nov 1999 20:32:05 -0500
:: From: "Simon Frank" <sgfrank at home_com>
:: Subject: Re: Aquatic Plants Digest V3 #1372
::
:: 64 elemnts?  I think not.  Arsenic? Poison.  Sodium, Lithium, Cesium,
:: Potassium?  Very reactive with water (ie. explosions in the case of cesium).
:: Lead? Poison.

:: Along with the fact that many of these chemicals are *extremly* rare, I
:: don't buy this list.  fake.

> Silicon as silicate 59.6 %
> Aluminum 22.9 %
> Iron   4.7 %
> Magnesium   2.5 %
> Potassium   2.5 %
> Barium 969 ppm
> Fluorine 500 ppm
> Copper 327 ppm
> Vanadium 156 ppm
> Zirconium 144 ppm
> Manganese 119 ppm
> Zinc 78 ppm
> Cerium 68 ppm
> Rubidium 42 ppm
> Chlorine 40 ppm
> Lanthanum 33 ppm
> Nickel 30 ppm
> Neodymium 21 ppm
> Prasoodyminium 20 ppm
> Gallium 17 ppm
> Cadmium 17 ppm
> Lithium 15 ppm
> Molybdenum 13 ppm
> Boron 10 ppm
> Scandium 10 ppm
> Lead 10 ppm
> Chromium   9 ppm
> Cobalt   8 ppm
> Niobium   6 ppm
> Arsenic   6 ppm
> Samarium   5 ppm
> Thorium   4 ppm
> Hefium   3 ppm
> Cesium   2 ppm
> Gadolinium   2 ppm
> Holmium   2 ppm
>
> Tin   1 ppm
> Iodine   1 ppm
> Selenium   1 ppm
> Uranium   1 ppm
> Dysporium   1 ppm
> Bromine   1 ppm
> Erbium   1 ppm
> Beryllium   1 ppm
> Thallium   1 ppm
>
> Antimony   trace
> Ytterbium   trace
> Terbium   trace
> Tungsten   trace
> Mercury   trace
> Silver   trace
> Tellurium   trace
> Thulium   trace
> Lutefium   trace
> Indium   trace
> Rhenium   trace
> Bismuth   trace
> Germanium   trace
> Iridium   trace