finishing.com logo ips1
HOME FAQs BOOKS JOBS: Help Wanted Suggestions      you are here: Hotline/Forum => Letter 26104

Electroplating rhodium using rhodium iii chloride hydrate, 99.999%

+++

I want to electroplate Rhodium iii Chloride hydrate onto aluminum electrodes. We think that we can deposit rhodium onto a metal without using sulphuric acid but just simple purified water. We are going to use platinum anode in our bath. Is it possible do you think? WHAT is the point of using sulphuric acid.

Denis C [last name deleted for privacy by Editor]
research student at university - Sheffield, England (UK)


+++

You can only plate an ion out of solution if it is in solution. If a salt is virtually insoluble in water, then there can be virtually no metal ions in solution, so you can't plate them out. If the salt is highly water soluble, and it sounds like it may be in this case, you can reduce the metal onto the cathode with electricity.

That doesn't mean it will be a sound, worthwhile, plated layer. Then again, it won't be anyway if directly deposited onto an aluminum cathode.

pic of Ted Mooney Teds signature
Ted Mooney, P.E.
finishing.com
Brick, New Jersey


ANSWER or FOLLOW UP POST an unrelated QUESTION HOT Topics

Disclaimer: It is not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information
presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The
internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Jobshops Capital Equip. & Install'n Chemicals & Consumables Consult'g, Train'g, Software Environmental Compliance Testing Svcs. & Devices Used & Surplus


Home    -    Contact    -    ©1995-2012 finishing.com     -    Privacy    -    Search