Jade wrote:

> Just starting to make colloidal silver. Wondering if we could standardize a
> recipe.

You read my mind, Jade.

> 1) Gauge of silver wire.
>         I have seen everything from 18 gauge to 12 gauge to silver ingots.

Correct!

> 2) Purity of silver
>         I've heard anything from 99.9 to 99.999% silver.

We seem to have agreed that anything purer than 99.9% fine, also 
referred to as "three nines pure", is good enough. 

> 4) I heard cautions against letting the silver touch the sides or bottom of 
> the
>    glass, to directions to hang the wire over the glass. Why or why not?

I've taken both suggestions and combined them. I bent my wires so
they sort of clip on the rim, *and so that the submerged portions are
not touching the glass. Ain't I smart!?  <grin>

Bad ASCII art...

 __  this part goes over the rim of the glass
  |  |
_|  |__ clip attaches here
|
|
|
|  this part's submerged
|
|

> 5) Length of time

Depends on a lot of variables, doesn't it! 
 
> I am hoping to get something like
> 
>   For 12 gauge, submerge X inches for Y minutes to get Z potency.
>   For 14 gauge....
>   For 16 gauge...
>   For ingots...
>   To get A ppm, cook X minutes
>   To get B ppm, cook Y minutes
> 
> Can we get any consensus here?

We've got so many variables that it's difficult to know what's 
happening.

The commonest recipe seems to be something like:

     14 gauge, something like 3-4 inches submerged
     8 oz of really clean water (steam distilled or better)
     1-2 drops of saline made from 1/2 tsp salt in 6 oz of water

This is supposed to yield about 1 ppm per minute of operation.

**But** there are unanswered questions, such as...

Distance between electrodes: Is production rate sensitive to this?

Touching or not touching the glass? Important?

Wire gauge: what effect does shape and area of the electordes have?
Is production rate area dependent?

How much effect does saline concentration have on rate? Using 1 or 2
drops is merely a factor of two, after all!

And what effect do all these variables have on particle size and 
anti-microbial activity?

I think a very good question to ask ourselves might be this: Is the
production rate more dependent on current flow than anything else? If
so, we'd have a way to measure total suspended silver evolved as a
function of current and time -- correcting for many of the geometric
and procedural variations noted above.

I'll post in another message some experiments I'm thinking about.

Mike

[Mike Devour, Citizen, Patriot, Libertarian]
[[email protected]                       ]
[Speaking only for himself...              ]