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topic 25409

Plating shop seeks formula for Uranium plating solution


A discussion started in 2003 and continuing through 2020 so far.
Adding your Q. / A. or Comment will restore it to the Current Topics page

2003

Q. Does anyone out there have any suggestions for a plating bath consisting of Uranium 238? I know that it can be electrodeposited, but I'm not sure what Uranium compound works the best. I have checked the Internet and come up with nothing. We would also be interested in a consultant that knows the metal. Any help would be greatly appreciated.

Tom H [last name deleted for privacy as need is not current]
electroplating - Fort Wayne, Indiana, US


2003

A. Uranium 238 (Actinide) one can separate, as the source for the alpha spectrometry research, with galvanic method. You need pure uranium compound - solution (no other metal ionic, for instance Fe). Bath composition for 1L:

Ammonium oxalate 30 g
Ammonium chloride 50 g
Hydroxylamine 1g
1,1,4,7,7-Diethylenetriaminepentaacetic acid - DTPA 3,3 ml
uranium compound ? solution (trace-mixes)
Water for 1L
Cathode - stainless steel Anode ? Platinum electrode
PH=3,5 (pH corrected with HCl conc. ) , current I=0,65 A/cm2 (centimeter2).

Best regards,

Waldemar Tomankiewicz
- Cracow, Poland


2003

!! U238 is radioactive. How do you propose to protect yourself or others. Note that you need to be permitted by the NRC. Their enforcement makes EPA and IRS look like lap cats.

James Watts
- Navarre, Florida


2003

A. It is a method for environmental research in the Environment Laboratory for measurements of alpha radiation by means of alpha spectroscopy. (for samples containing actinides - for example soil samples).

Regards,

Waldemar Tomankiewicz
- Cracow, Poland


July 26, 2008 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. Hi, how do I electroplate Uranium 238 anodes onto copper plates? What is the composition of the chemicals in the electrolyte bath, and the proper current requirements?
Please do let me know how to do this. Thank you!

Brian

Brian Charles
hobbyist - Matthews, North Carolina


March 16, 2011

A. Use 5 % NH4Cl solution. Dissolve sample in 0.1 N HCl. I am plating Uranium right now for Alpha Spectrometry. Don't worry about pH it can be a little acid. Important to add conc. NH4OH to electrolyte before shutting off current or you will redissolve U.

CURTIS MCKINNEY
- MIAMI, FLORIDA, USA



Is 316SS suitable for uranium liquor with chlorides and sulphates?

June 21, 2016

Q. [1] IS SS 316 SUITABLE FOR URANIUM LIQUOR CONTAING 38 GM/LTR OF CHLORIDE ION AND 30 GM/LTR OF SULPHATE ION?

[2] WHICH METAL AND RUBBER IS SUITABLE FOR SULPHURIC ACID VAPOUR AT 100 °C? THE CLIENT NEEDS VALVES.

B K MODI
corrosion resistant valve manufacturers - INDIA


August 18, 2020

A. You might need platinum plated anodes. They are insoluble in almost everything but concentrated aqua regia. They usually plate 250-500 microinches of platinum from a solution of dinitroplatinite sulphate. The substrate niobium, colombium or titanium can be used. In order to get the platinum from a DNS solution is to etch the titanium in concentrated (boiling) HCl. I think the temperatures I used was 185 °F. The acid boils at that temperature. YOU NEED A FUME EXHAUSTER! The fumes are not too bad, but it should be under a hood or exhaust set up around the tank. Right from etching the titanium in HCl, it goes directly into the DNS platinum solution and is electroplated to specs. If you rinse the titanium between the etch cycle and the platinum tank, the metal will protect itself and form titanium oxide. Eventually you have to kill the tank from Ti contamination and reclaim the platinum. Then make a new electrolyte. The DNS can be made by dissolving platinum metal in nitric and sulfuric acid. It is a liquid dark brown platinum compound/solution. Cool chemistry!

Tom Hendry
- Fort Wayne, Indiana

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