Argentium silver

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zachy

Well-known member
Joined
Jun 5, 2013
Messages
99
Hello friends,
Someone here to refined Argentium silver, basically I think it is an alloy of silver and germanium, but I do not know the esacta composition of this alloy to enter to attack with acids, does anyone know what other elements this formed? the exact formulation is unknown, one of the metals of the alloy is germanium.
Thank you. :D
 
yes, wikipedia says something very basic, I wanted information a little more advanced, as a phase diagram, or if someone here has worked with this type of alloy. anyway I want to do rehearsals, but I do not think that a patented alloy, put its composition esacta in wikipedia, must have some recipe or composition that is not public management.
Thanks for the input.
 
1506306365736273861068.jpg

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Those are both from silver, by Butts and Coxe.
Silver metallurgy by H.F. Collins did not mention the alloy, nor did "phase diagrams in metallurgy" by Rhines

here is from Noble metal alloys by a few people
1506306740263269458424.jpg
15063069299821046090154.jpg
There is a little bit more from that book, but I fail to see how it will aide you in any way when it comes to dissolving with nitric and cementing on copper, or just simply running in a breakdown cell...
 
There are also some External Links at the bottom of the Wikipedia page that are good, including the patent.

Seems to be a lot of info on the internet about Argentium Silver
 
Topher_osAUrus said:
...but I fail to see how it will aide you in any way when it comes to dissolving with nitric and cementing on copper, or just simply running in a breakdown cell...
That's where I'm at--when I'm making stuff out of silver, Argentium is my preferred alloy. I don't change my refining processes at all for it. Germanium should dissolve in hot concentrated nitric or sulfuric acid--and when it does, I don't believe (but haven't verified) it will cement on copper. If XRF/assay showed it did, then electrorefining (silver cell) would be an option.

In the end, does your buyer care what the remainder is if he's buying based on purity?
 
I received a PM from a member asking if I knew the composition of Argentium for the purposes of alloying their own. In the interest of transparency, this was my reply:

Argentium is a proprietary alloy, so in a way, you can't make Argentium, but you can make a germanium Sterling alloy.

According to WIkipedia, Argentium has 1.2% germanium, but the reference they give doesn't back that up. The rest is probably copper, with some additives like flow agents for casting. Note that "standard" Argentium is .935 silver, not .925.

I would start there and see how it goes. I wouldn't call it Argentium, though--Argentium International Ltd is working hard to establish their brand and may come down on you if they find you claiming to have Argentium®.
 
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