This picture was taken from above and shows
the Tyndall effect in subdued light. The laser was directed from right to
left. If one were to look at the vessel from in front at eye level, the
Tyndall effect would be almost invisible. It's hard to see but the
red beam is striking the silver particles in the water and what is seen is the
light reflecting off those particles. A strong Tyndall effect would
indicate large particles. This picture was taken of colloidal silver made
to 20 PPM strength. By using constant current and also stirring the CS
during production, we are able to make a quality product. This is what
one should see when looking for Tyndall
This laser will allow one to see the
Tyndall effect very easily. Just direct it through the colloidal dispersion and the
beam will strike the particles and the light will be reflected off those particles.
Large particles will be seen as what is known as "sparklers".
This is a very inexpensive way to see your colloidal silver
and judge its characteristics. See order page
The unit shown is a
bright little flashlight with (8) super-bright white LEDs in a circle and a
5mW red laser right in the middle. One click and it's a
flashlight, another click and it's a laser pointer. (Note: flashlight and
pointer can't be on at the same time.) Measures 4-3/8" long x 1-1/8" dia in
dark silver aluminum with knurled grips at both ends, and comes with a
black-canvas belt pouch and a wrist strap. The flashlight lasts 30 hours on
a set of new alkaline batteries The laser will last hundreds of hours on one
set of batteries. (3 "AAA" heavy duty batteries included
Priced at $19.95. See order page.
This sample was made by allowing constant current to flow during the
production phase but we did NOT stir the CS. Note the dark color and
very strong Tyndall effect. By not stirring the CS, the product
is what would be called "agglomerated". The dark color is from silver
atoms linking together to form larger particles which reflect yellow light.
However, the sample is crystal clear, showing that constant low current does
make a clear product. We allowed this sample to become very dark to
illustrate the effect of agglomeration. Compare this sample with the
one at the left and you can see the obvious difference between properly made
CS and an inferior product. This sample is about 35-40 PPM. If
this product had been made using constant voltage, it most likely would have been
impossible to see through because it would have become "muddy".
Please note: In the above sample it is not necessary to look for
the Tyndall effect in subdued light nor is it necessary to look down from above as in the
picture at left in order to see the effect. Agglomeration is obvious in improperly