Thanks Phil,  It seems we can regard the term **colloidal silver** as
generic, considering that there are numerous, altogether different colloids
of silver.

For example, where I work at TAM Ceramics, Niagara Falls, NY, we are
readying distribution of silver treated, granulated ceramics which gives a
remarkably effective water filter media for destruction of pathogens.  I.e.,
for the treatment of this filter media we use a colloid of silver.

It seems that the term ‘colloidal silver,' is the way it’s described for
sale because for many it’s easier to comprehend than the more accurate
description:  electrically isolated silver.  In fact, could it be that to
be more accurate still we should call it, **Positively Charged Ionic Silver*
*?

BTW, for anyone who may be interested, do checkout the article on TAM
Ceramics water filter media of granulated ceramics, coated with a small
amount of silver.  The article is in the January/February issue of **Ceramic
Bulletin*,* the journal of the American Ceramic Society.

If I do say so myself our ceramic filter media is the one and only
genuinely sustainable approach to water treatment against pathogens for the
developing world; low cost and user-friendly as such:

http://tamceramics.com/wp-content/uploads/2019/01/TAM-feature_01-02-2019.pdf

Reid

On Thu, Jan 31, 2019 at 3:23 PM Phil Morrison <[email protected]>
wrote:

> The term 'colloidal silver' is more likely used in the chemistry arena,
> 'EIS' is more likely in the physics arena.
> We are in the chemical arena, so CS is the appropriate term here.
>
> Both silver particles and ions work to control pathogens, each in their
> own way.   You might say particles work extracellularly while ions work
> intracellularly.
>
> We are really measuring clusters of silver particles in CS, so nano-meter
> is the proper term.  For instance, 1 np equals approximately 50 silver
> atoms.
>
> KISS
>