No Sir. Just refined cement silver from sterling flatware, jewelry etc.Have you melted gold in that crucible?
I always thought a blue solution when ammonia was added indicated Silver Chloride - then again I'm no expert on Silver treatment so feel free to slap me if I am wrong.Next time you rinse your cemented silver, take a sample of the rinse water and add a drop of ammonia. If you see the rinse water start to turn blue, that indicates that there is still copper present and more rinsing is required.
Thank you so much for the education. I wonder would it help to do an hcl bath as I would do with gold? Or does that cause issues with silver?You did not get all the acid washed out of your silver cement resulting in metal oxides going off into the glaze you see
If you don't get all the acid washed out of the cement what happens is as a result of the dissolve metal ions (metal salts) in the acid that is not fully washed out - then the heat (during melting) causes metal salts to calcine (reduce) to metals oxides that then go off in the glaze/flux
In this case the brick red/orange indicates copper
The blue (on left side rim near pour spout) is copper nitrate (salt) that did not calcine to copper oxide
Kut
Thank you my friend. I appreciate the education. I will apply this next time.Next time you rinse your cemented silver, take a sample of the rinse water and add a drop of ammonia. If you see the rinse water start to turn blue, that indicates that there is still copper present and more rinsing is required.
I wonder would it help to do an hcl bath as I would do with gold?
Or does that cause issues with silver?
Hey Kurt!NO !!!
Just wash it WELL with water
It may (or not) cause "some" of the ultra fine silver particles to convert to silver chloride
Silver & chlorides (of any kind) do not go well together --- unless you deliberately intend to go with the silver chloride process
Kurt
Thank you so much my friend!!!Hi
silver with an admixture of other metals - lead oxide -
borax .
jurek
A very good picture for the thematic group -nickname too .You made glaze!
Just enough to know they didn't refine to 99.9.A very good picture for the thematic group -nickname too .
Do you know the achievements of ancient Rome inin gold refining and mining ?
jurek
Thought silver chloride is a white precipitate and colorless would be silver nitrate in solution?Pretty much colorless.
Dave
I read not long ago, think in this very forum maybe, that they added salt to turn the silver to chloride and get pure gold, ofcourse it probably wasn't 99.9 but still.Just enough to know they didn't refine to 99.9.
For the millennia Gold has been collected and refined there must have been many techniques that has been used.Thought silver chloride is a white precipitate and colorless would be silver nitrate in solution?
I read not long ago, think in this very forum maybe, that they added salt to turn the silver to chloride and get pure gold, ofcourse it probably wasn't 99.9 but still.
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