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topic 49593

How to buy rhodium so I can make rhodium plating solution?

August 7, 2008

Q. Sirs, I want to make rhodium plating solution. How I can buy this metal.

Amir Ebi
buyer - Tehran, Iran

May 17, 2011

Q. How to buy rhodium so I can make rhodium plating solution?

kithsiri athuraliya
athuraliya silver design - colombo sri lanka

May 17, 2011

A. Hi, cousins.

Precious metals like rhodium should be available around the world. You might start at so you are up to date on pricing. It may be hard to get a stable supply though because it's probably reserved for steady customers when it's in short supply. The particular problem with rhodium is that it is so rare that nobody anywhere mines it; rather, it is a byproduct from mining and refining platinum. So, when a lot of platinum is being mined and refined, rhodium is available for about the same price as gold. When platinum mining is down but the demand for rhodium continues, the price of rhodium can shoot up to 20X the cost of gold and small users probably can't get it at any price.

Getting from a nugget of rhodium to a useable and robust rhodium plating solution is not an easy trick, but letter 30419 is a starting point. You might already know this, but for the benefit of those who don't, users virtually never make plating solutions, they buy them. It's probably easier to buy a properly formulated highly purified rhodium plating solution from a company that has done years of research and can assist you when you need help than it is to buy a chunk of rhodium metal. Good luck.


Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey
Striving to live "Aloha"

How to manufacture rhodium plating solution on a large scale

August 18, 2018 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread



August 2018

A. Hi cousin Hemang. Nobody can condense a manufacturing process like that into a reply here, any more than they can answer how to design & build an airliner or perform an appendectomy in a paragraph or two … but what we can do is steer you towards good resources!

I don't think you'll find much in the technical literature, but have you spent some quality time with google patents or USPTO patents so you clearly understand the claims about what constitutes a good rhodium plating solution and what processes they employed to achieve it? It looks to me like there's a lot of great info available simply by searching the patent databases for "rhodium plating". Good luck!


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

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