In a message dated 7/3/00 9:55:20 AM EST, [email protected] writes:
<< Fred wrote:
> Sorry Marshall, I left out the "arc" part, which is the "wierder"
> part of the process - why use a high temperature arc in air?
> (To vaporize the silver and spalt it into the water but also
> breakdown the air????)
>
> Of course I can also add:
> "why us 10,000 volts for a 2 volt DC process"? and......
> "why not use polarity reversing LVDC"?, if you just want
> to get all of the released silver into solution?
>
> Some will reply that the feature is that it produces in volume,
> but the "100 volt pickle jar array" recently posted also will!
I believe that is correct. For economic reasons brute force sometimes
is more economical than elegance. They both produce comparable
products. Another reason may be that there is information that
indicates that CS sold must be made by the HVAC method according to the
FDA.
Marshall
>>
Marshall: Not only the FDA, but Professor Gibbs of the University of Delaware
in his recently published booklet, Silver Colloids: Do They Work?, screened
15 commercial CS products using two independent microscopic techniques to
determine particle size distribution. I believe the only type of CS that made
it through both types of microscopic screening requirements was that produced
by HVAC. From there he went on to test for effectiveness in killing a
moderately resistant bacteria. Only one of the remaining 4 (I believe) HVAC
products was given a "4 star" rating ("5 star" is the highest possible
rating). The remainder got "3 star" or lower.
As far as sputtering silver off an electrode is concerned, it IS difficult to
achieve, but that's probably because my processing technique is rather crude.
I need a good HVAC expert to put his shoulder (preferably his mind as well)
to the wheel. Fred, are you available? Roger
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