I have some tantalum jewelry that I would like to clean. I've tried just soap and water to no success, so I wanted to try one of the standard at-home cleaning methods, like this one that uses foil, hot water, baking soda, and salt.
I know that tantalum is very non-reactive, so I would expect this to be safe to the metal, but I want to confirm before I accidentally do any damage. Unfortunately because tantalum is such a non-standard metal for jewelry, I haven't been able to get a straight answer from the internet or even the jeweler for whether this will be okay.
Is using the foil and baking soda method safe for cleaning tantalum jewelry? Are there any common cleaning methods that would be safe for most metal jewelry but not for tantalum?