Platinum

[Anonymous]

Does anyone know a simple way to test for Platinum?

 

[goldsilverpro]

This has been covered at least 100 times on the forum.

 

[leavemealone]

Don't worry goose,Ill take the time to write it.Test with standard stannous,only you are looking for a brilliant red result instead of dark purple/black with gold.

 

[Anonymous]

GoldSilverPro,

I apologize to you for the question, but was in a position to purchase some supposed platinum and needed a quick answer to test the substance. Now that the opportunity has passed, I am going to search the site.

Thank you Alone, but I have a solid object. How would you use stannus on it?

 

[wop1969]

I may be wrong but I think you would put a drop of nitiric on it, let any reaction stop then test the drop for PT with StCl.

 

[Platdigger]

Yea, sorry Wop, but you are wrong.
If it reacts with nitric.....it is not platinum. At least not pure.
Randy

 

[wop1969]

well I tryed, knowing someone would correct me
I did learn somthing new.

So what is the right method?

 

[Platdigger]

You could use AR and then stanus.
But as far as non-destructive tests, I am not sure. That is unless you have XRF.
There are some cheap electrical type testers, but I am not sure how good they are.
You could use a small torch, get it yellow hot in an oxidizing flame, and when it cools there should be no discoloration if it is platinum.

 

[Anonymous]

I used my Mizer gold tester, it would not test, but the Mizer would not default like it does on other metals, it just sat there. Tried a 14k piece and it worked fine. The ring again and it just sat there.

I will try the torch tonight

Thanks

 

[leavemealone]

Goose, you could do a scratch test,thats about the least destructive.Just scratch as small of an amount as possible onto a stone and test from there.Heres to hoping its platinum(holding up bud light).

 

[goldsilverpro]

Platinum testing acids are available for use with a touchstone.

 

[Anonymous]

Thanks Alone and GSP.

I will purchase the needed items and be ready for the next time.

Happy Gold Processing

Goose