Colloidal Silver and Gold Forum

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Kephra has mentioned repeatedly, that the electrolysis method produces a less good result.
What does that mean exactly?

Yes I have.


Gold Chloride Method
Easiest for those who can access gold chloride
Exact ppm known
Scalable to high ppm
Little residual unwanted sodium
Very fast production
Little equipment required

Electrolysis Method
For those who cannot access gold chloride
Unknown ppm
Not scalable to high ppm
More excess sodium
Slow production
Most equipment required
High current needed  (silver generator too weak)

I could see some use for colloidal gold and I looked into this branch of the forum.

Unfortunately, the searche engines do some filtering, so I don´t see anything outside of Austria and Germany.
There are the usual world-wide companies like Fisher Science that sell Gold(III)-chlorid (red crystals) at prohibitive prices. There is Carl Roth selling Tetrachlorogold(III)-säure Trihydrat, and I have seen Gold-I-chloride, whatever the difference may be.

I understand that you dilute the powder to make a 1% liquid.

Morphisto.at sells gold cloride 1% for clinical analysis, at ca. 400 Euros for 100ml. They do not specify the purity. This price is about 4 times the price Kephra quotes somewhere here, although this is a few years old.

One source littlehouseofpyro (who use this substance for gold toning of b/w photographs) finally has comparable prices for 1% solution at ca. 50 Euros per 50ml. They of course do not tell any purity.
Edit: I wrote to them and asked. Answer yet to come.
They also have 5% and 10% solutions.

I am a bit confused.

Cinnamon extracr contains phnenols.  Cinnulin is just a trade name.
https://books.rsc.org/books/edited-volume/912/chapter-abstract/709085/Role-of-Phenols-and-Phenol-Derivatives-in-the?redirectedFrom=fulltext

I have a small torch bought from a model engineering supply which they sell for brazing. It runs off propane, and it never quite reached the temperature for brazing. Maybe for them miniature brass gearwheels. MAPP reaches higher temperatures without oxy.
Silver melts at 900+ C. I did not want to spoil the broth, neither did I want to invest time and money into what will likely be a one-time job.

If what I did develops any problems (like high resistance) then I can try it. I doubt it. I keep the joint out of the electrolyte.

As a side note, selling bullion in the US requires a license (which I did not have), but once the wires were attached, the bar is no longer bullion; it is a silver plating anode.

Hahaha, typical bureaucracy...

I have now obtained a 1 troy ounce worth of silver bullion from the local dealer.
I went with it to a goldsmith, asking if he could somehow fasten the flat silver wires (I used earlier) to it. He could not. The PUK welding machine did not do it and a 999 solder was not to be had.

I finally used a Dremel drill with a stand (used for drilling PCB´s) and a 0.8 mm HSS drill and made a slot right under the rim.
This is a pretty tight fit for the wire as is, and a few gentle blows with a hammer onto the rim fastens the wire shock-proof.

I went and made a batch. I had the impression that with the big anode I have more of a cell voltage headroom, all other things equal.
I saw a litte "smoke"  coming from the anode, so I went back from 6 to 5 mA.

I know a guy who has lab utensils, maybe I get a stirrer for peanuts. This would certainly be an improvement.