These links will give you a good
overall perspective of the colloidal silver story. Included are the
most informative and popular non-commercial sites as well as a few
retail sites that have some useful info.
This excellent book provides valuable information on colloidal
silver and is written by an eminent scientist who until his untimely
death in May 2000, was a friend and colleague. We are grateful for
the contribution of this work by the estate of Ronald J. Gibbs so
that it may be offered here as an educational tool.
Available in Adobe pdf format for free downloading.
Click here toDownload
All About TDS meters
A TDS (Total Dissolved Solids) meter is an extremely handy addition
to your colloidal silver kit. It measures the initial purity of
commercial or home distilled water, and provides a useful guide to
the final ionic PPM (Parts Per Million) of your colloidal silver.
Its also very handy for testing the quality of your mains water,
rain water or bore water.
This good quality meter features advanced microprocessor technology.
- Hold Function (saves measurements for convenient reading and
- Auto-off function (shuts off automatically after 10 minutes to
- The measurement range is from 0-9990 ppm. From 0-999 ppm the
resolution is in increments of 1ppm. From 1000 to 9990 ppm, the
resolution is in increments of 10ppm indicated by a blinking 'x10'
- Temperature gauge.
- Includes a neat carrying case with belt clip.
- Uses just 2 button batteries, not 4 like the similarly priced blue
Hanna TDS-1 and it has much bigger, easier to read numbers, and is
easier to use than the Hanna meter too.
Note 1. All TDS meters measure the conductivity of
dissolved charged Ag+ IONS only, then they convert that reading to
an estimated PPM. They cannot detect or measure PARTICLES (colloids)
as these are not actually dissolved and therefore they are
non-conductive. In clear colloidal silver it is generally assumed
that the IONIC component will constitute 85% to 95% of the TOTAL
PPM. The PARTICLE component, even though it is not measurable by the
TDS, would be an additional 5 to 15%. (That's assuming you started
with pure water with a near zero reading).The
Tyndall Effect described at the bottom of this page is the simple
indicator of the presence of the colloidal particles.
TDS meters are factory calibrated to provide an estimated PPM for
the most common dissolved ion, sodium chloride (salt), not colloidal
silver. But salt is about twice as conductive as silver ions, so
when using a TDS meter to estimate the ionic PPM of colloidal
recommended practice is to multiply the reading on the meter by 2 to
it has actually taken at least twice as many silver ions to reach
the level of conductivity indicated on the meter. So, for example,
if the TDS meter says 6 then your actual ionic silver PPM is
probably closer to 12 to 15 ppm.ALL
TDS METERS work as described here! So if anyone tells you you can
simply read a colloidal silver strength directly off the dial of a
TDS meter, they dont know what they are talking about.
meters (and EC meters such as COM100 below) cannot distingish
between silver ions and various other types of impurities, so to use
them for measuring colloidal silver you must start with pure water.
15 hours batch
The grey curved line
indicates the Total PPM. The background color
indicates the color of the water of this imaginary
batch at that total PPM. The example brewing time
here is 15 hours, but depending on variables such as
water volume it could just as easily have been 1
The graph above plots the progress of an
IMAGINARY batch of colloidal silver over a period of
15 hours. . It's just an imaginary batch I've
constructed 'on paper' to illustrate a few points -
including the point that there may be much more
silver in the batch than what you might simply
measure with a TDS meter. It should not be viewed as
advice that every batch will go yellow from about 10
PPM or go dark grey at 80 PPM. (A real batch can go
yellow from as low as 3ppm).
5 hour mark. This would have been the perfect
place to stop this imaginary brew. The
TOTAL PPM (the grey line) is 15. The IONIC PPM
(red) is about 13, a proven safe dose and very
effective if you drink enough. And the PARTICLE
PPM (black dots) is about 2. But the water is
still nice and clear indicating that those
particles are tiny. This would be very nice CS.
Although this is an imaginary batch, most
research seems to suggest that good quality
CLEAR CS is usually about 85 - 95% ionic and 5 -
15% particles, so a TDS or EC meter that only
measures the IONIC PPM can probably, by
reasoning, provide a clue to the TOTAL PPM as
long as the CS is CLEAR.
saturation point. The saturation point is the
limit at which water will continue to hold
another substance (in this case silver ions) in
solution, so in theory this is the highest ionic
ppm that can be achieved. Above this point the
ions will precipitate out of solution, form
particles, aggregate into larger particles, and
eventually, if the particles get big enough,
fall out of suspension over a period of hours or
years. In this imaginary brew the saturation
point is about 24 ppm but it varies depending on
factors such water quality and temperature. It's
important to note however that tiny particles
can begin to form and aggregate well below this
saturation point - as indicated by the Tyndall
Effect in a laser beam, or the yellow colour of
the water. The presence of particles may in some
instances prevent the batch from ever reaching
its saturation point because particles
continually draw ions out of solution.
Note about particles.Particles
(the dotted black line) begin to form almost as
soon as the power is switched on. The aim is to
minimise the particle size. This is best done by
using a combination of current control and
stirring to create ions and particles slowly,
and disperse them to low concentration zones
where the conditions are less advantageous for
7 hour mark. The operator probably should have
stopped this batch as soon as it developed a
little bit of color. The TOTAL PPM (the grey
line) is now about 30 but the water is starting
to turn grey. The batch is near saturation point
for IONIC silver so the particles are rapidly
becoming more numerous and larger. It's
borderline quality for drinking but its fine for
Note about colour.The
colour change of the water is usually not as
simple as a straight progression from clear to
yellow to grey. Very often the water will go
straight from clear to a very pale grey without
any apparent yellow stage. But often that pale
grey CS will turn yellow if you leave it
'leveling out ' of the IONIC PPM (as illustrated
by the red line) often leads at-home CS makers
who use a TDS meter to think that the PPM of
their colloidal silver is no longer increasing.
In fact the TOTAL PPM is increasing rapidly. The
process of electrolysis will continue to
dissolve silver ions into the water as long as
the power is on, but in our imaginary brew the
saturation point of the CS has been reached so
those silver ions can't stay in solution. They
are coming out of solution and forming particles
as fast as they are dissolving off the
electrode. As particles become larger they
develop a greater power to attract and draw ions
out of solution. In fact they can sometimes
attract the ions faster than the ions can be
produced, resulting in a drop in IONIC PPM as
illustrated by the red dashed line. This means
that your TDS meter can show a drop in IONIC PPM
even while you continue to brew.
the 10 hour mark, the total PPM of this
imaginary batch (the grey line) is about 45, but
a TDS meter would only show 24 ppm because it
can only measure the PPM of the IONIC silver
(the red line). The effect of stirring and
current control in a good quality generator is
to delay the formation of particles for as long
as possible, and to minimise their size when
they do start to form.
15 hours. The water is now almost black. This is
CS for the garden or for making GEL thats the
color of axle grease. (I have, and I quite like
it). But I definately wouldn't drink it. Total
PPM in this imaginary batch is 75 PPM but a real
batch this color might be hundreds of PPM.
animation shows the relative size of Mesosilver nanoparticle
Yahoo Discussion Group - 4colloidalsilver
Colloidal silver2 was
the biggest and most active discussion group for CS
on Yahoo. But it hadn't had an active moderator for
years so Yahoo finally delisted it. So
4colloidalsilver has been started WITH a moderator
to keep the spam out. Membership is small but should
grow rapidly as CS2 members move over. Discussion
here can be pretty robust.http://health.groups.yahoo.com/group/4colloidalsilver/
Scientific information about
silver colloids. This site is owned by a company that
produces Mesosilver, a colloidal silver with a very high
particle content, so it is highly biased in favor of
'particulate' colloidal silver. Nevertheless it is an
outstanding site with informative FAQ's and explanations of
also has an extensive list comparing commercially produced
colloidal silver. (U.S. brands). Some are revealed to be
little more than plain water. Important Note: The brochure
offered on page 1 as a free download (Silver Colloids - Do
they work?) is highly supportive of 'particulate' colloidal
silver but it has a serious flaw. The author, Ron Gibbs,
believed he was studying highly particulate colloidal
silver, when in fact it was highly ionic.
This admission is only revealed on the site's FAQ's in a
question concerning the colour of Mesosilver.
Quote from the silver-colloids
"Regarding the dark color of high particle surface area
Question: Dr. Ronald Gibbs booklet states that high-quality
Colloidal Silver is colorless, but the highest particle
surface area colloid in the tabulations is dark in color,
why this discrepancy?
Answer: The material in Ron Gibbs book is slightly dated.
Ron died in May 2000 and the book material was frozen about
a year before. For example, the samples that Ron tested,
some of which were made for him in the Colloidal Science
Lab. Inc.(CSL) were believed by Ron to be at least 50%
colloidal when in fact they were mostly ionic (typically
90%). The methods developed at CSL to determine ionic vs.
particle concentration were just being developed at the time
Ron wrote the book and so he was not fully informed about
the ion/particle ratio of the test samples and consequently
made some erroneous assumptions. Ron assumed the sample were
at least 50% particles when they were only 10%.
(So in fact Ron Gibbs was proving that IONIC silver works)
Where does it go when you drink it?
"The Altman Study. Colloidal
Silver: Where does it go when you drink it and how long does
it stay there? A study by Roger Altman". This research
basically concluded that silver is eliminated from the body
(mainly in urine) almost as fast as it is consumed. And,
after ceasing to ingest, what little remained in the body
would be 50% eliminated within 20 days and 100% eliminated
within 100 days. "The completion of this study marks the
first real step toward conclusive evidence that the risk of
colloidal silver toxicity is negligible. It can be stated
with extreme confidence that a body, under normal
conditions, does not retain colloidal silver in bodily
tissues in any form, especially if the daily colloidal
silver consumption is 2 mg or less (more than twelve ounces
[350 mls] of 5 ppm colloidal silver daily) for reasonable
periods of time." (Quote from silvermedicine .org) Altman Study.PDFNote:
this link goes straight to a PDF which might take a minute
There are dozens
studies that prove beyond doubt that colloidal
silver kills germs in the laboratory. Here's just
one such study, conducted by Brigham Young
University. The results suggest 'ASAP Solution' is a
broad spectrum antimicrobial agent. ASAP is good
quality bottled 10 PPM and 22 PPM colloidal silver
solution. 96.4% and 87.9% ionic respectively.
(Silver Well CS is approx 87% ionic)http://www.toolsforhealing.com/CD/Articles/B/Brigham-YoungUniversityRe.html
And here, The Oxford Journal of Antimicrobial
Chemotherapy is in no doubt about the safety and
killing power of silver...http://jac.oxfordjournals.org/cgi/content/full/54/2/546"The
antimicrobial activity of small amounts of metal,
known as oligodynamic action, has been known for a
long time and is the basis for the development of
many therapeutic agents... Recently, ionic silver
substances have been resurging again in popularity.
What makes silver unique in comparison with other
antibiotics is the fact that it has no toxicity and
More tests proving the germ killing power of
Link 8 above is a site
that is very 'pro-particles', but this link shows
the other side of the 'Particles vs Ions' coin.
These studies suggest the ionic component of
colloidal silver is more potent as a germ killer
than the particle component. "Normally, when cs
fails to kill a bacteria or virus, the problem can
be solved by increasing the ionic strength. As Steve
Quinto shows, a weak CS has little effect on
bacteria, but increasing the strength kills 'em
dead". (Quote from Mike Monett).
This following link takes you to a recent in-vitro
study that specifically states it's the ions that
kill the germs. This study was accepted by Pub Med,
a service of the US National Library of Medicine.
PubMed is considered a 'reliable source' for
articles in Wikipedia.
Colloidal Silver Chemistry
Heres a pretty good theory of the
chemistry of colloidal silver, and how it does what it does. Note
the paragraph on silver compounds refers to potential problems
created by using ordinary tap water, not distilled or demineralised
water. Also note this very important phrase ''Ionic silver has the
proven ability to cause DNA to dedifferentiate or revert back to
stem cells''. You need to study that a little bit to really
understand the possible implications.http://silver-lightning.com/theory.html