suhailkhan8547
Member
- Joined
- Mar 29, 2011
- Messages
- 8
Can anyone tell me how to extract silver from gold and platinum? I just want to know about it. Is anybody there, who tells me what to do for it.
:lol:Barren Realms 007 said:You can run your material in nitric acid to remove the silver.
What 4metals told you is correct. If you have an alloy of silver and platinum, both constituents will dissolve readily in nitric acid. You can make that determination yourself by dissolving some of the material and testing with stannous chloride.jeneje said:Hello,
4metals I through pt group metals had to be heated with AR to dissolve in solution.
Ken
The high percentage of platinum is likely to be troublesome, especially considering there's gold in addition. In order to successfully part in a silver cell, one may have to add a given amount of pure silver, to lower the overall percentage of non-silver material. As is typical of electrolytic cells, a silver cell will perform best when fed high purity.Platdigger said:I believe you could run this bar directly in a silver cell.
And as Harold just said, the pt and also any gold should end up in the slimes.
Harold_V said:When you have silver and platinum alloyed, both will dissolve in dilute nitric, so you won't accomplish your task.
Harold
goldenchild said:Harold_V said:When you have silver and platinum alloyed, both will dissolve in dilute nitric, so you won't accomplish your task.
Harold
Didn't know this. So the platinum won't drop as a sponge?
I am unable to address that question, but know it to be true in practice. Lou may be able to provide the reason-----but if memory serves, it is discussed in Hoke's book as well.How is platinum digested without HCL?
dcurzon said:dissolve Pt/Ag in Nitric 50/50 - adding enough Ag to increase the Ag content % to over 90%
cement with Cu
melt into Anode
part in silver cell
recover silver from cell
remaining slimes = possible Pt
Oz said:dcurzon said:dissolve Pt/Ag in Nitric 50/50 - adding enough Ag to increase the Ag content % to over 90%
cement with Cu
melt into Anode
part in silver cell
recover silver from cell
remaining slimes = possible Pt
You are making life hard on yourself. If I understand this correctly you are adding silver to your Ag/Pt alloy to bring the Pt under 10% so the Pt will go into solution in nitric. Then after you digest your new alloy you are cementing it on copper. What have you gained, as both will cement on the copper? When you melt this cement into an anode you will have what you started with before you digested it in nitric.
Once again I am at the mercy of my lack of education, but those with questions about the addition of water to nitric acid being valid in the dissolution of silver should explore the hydronium ion.Oz said:On another note, readers should take to heart what Harold said about diluting concentrated nitric for silver. You can put a pure silver round into 70% nitric and it will just sit there and smile at you. Add a bit of water and it will digest with a vengeance. More or stronger is not always better.
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