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 >

