kjavanb123
Well-known member
Hi
I was given the following dental scrap, first I boiled in nitric acid for 10 minutes no reaction.
Added some hcl, reaction started and brown fumes came out.
I let that solution to simmer, and solution turns dark green which I think indication of chrome in dental alloy.
This might be helpful people who are buying dental scrap.
These are dental scrap
Those scraps in nitric acid
Finally after addition of AR, they started to dissolve, solution turned dark green.
There was a post suggesting try to bend the metallic section to 90 degrees of it breaks its CrCo alloy.
Thanks
KJ
I was given the following dental scrap, first I boiled in nitric acid for 10 minutes no reaction.
Added some hcl, reaction started and brown fumes came out.
I let that solution to simmer, and solution turns dark green which I think indication of chrome in dental alloy.
This might be helpful people who are buying dental scrap.
These are dental scrap
Those scraps in nitric acid
Finally after addition of AR, they started to dissolve, solution turned dark green.
There was a post suggesting try to bend the metallic section to 90 degrees of it breaks its CrCo alloy.
Thanks
KJ