Thanks again.
From your reply I understand that the simplest way for a layman to
concentrate a particulate solution, then, would be the "add salt and
decant" method described in the archives.
I have had no need to do this but perhaps someday. For now, the
simple Silvergen CS mixed with Gatorade works fine for whatever (very
infrequently) ails me.
On Monday, May 31, 2004, at 01:32 Asia/Tokyo, Frank Key wrote:
JBB wrote:
NB that the methods below would conceivably enable even a layman to
decant nearly pure ionic/colloidal solutions. Seems to me that in
the
freezing method, for example, one could confirm the dense
concentration
of particles at the bottom of the container using a laser, and gently
decant to keep those particles in the bottom. Those who believe
that
the particles are superior, or wish to mix particles with other
substances -- bloodroot would be an interesting experimental substance
-- could readily do the separation without high-tech tools.
Thanks, Frank! Very generous. Please correct me if I have
misunderstood anything here.
The freezing method "breaks" the colloid and forces the nanometer sized
particles to aggregate into large particles that look like specks of
pepper
that fall to the bottom. Once the colloid is so "broken" the particles
can
not be used to form a colloid.
This is a method for analysis purposes only and cannot be used to make
a
high particle concentration colloid.
Frank Key
www.ColloidalScienceLab.com
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