No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Ruthenium plating Q&A's

adv.:    Discover the choice made by manufacturers
nationwide for high quality jewelry plating & finishing

red sky plating banner

Q. Hi Guys, I'm new. I'm currently working on doing ultra black ruthenium. Based on my research I should be able to get a nice finish after about 8 minutes. 165 °F, good agitation.

0023-1

I'm struggling to get a full even finish even after 30 minutes. Running at about 2.5 volts. Miata lost. I'm getting uneven finish and not full dark grey or black. I am using a home made gold plated copper rack to hold the Libertads coins. Any suggestions? I am a rookie.

DJ Jones
- Walker Louisiana
October 11, 2023




⇩ Closely related postings, oldest first ⇩



Q. I would like to communicate with anyone who is involved with the coating of ruthenium, or other platinum-group metals, onto other substrates. Any technique can be used, such as thermal spraying, electroplating, electroless deposition, etc.  

Regards,

Wayne G [last name deleted by Editor]
University of the Witwatersrand
1995

Ed. note: That's exactly the purpose of the forum, Wayne!
-- but through public discussions, not through private matchmaking. That disenfranchises the other readers and cuts them off from the conversation just when they're getting interested. We have all the room in the world for anything anyone wishes to share or publicly collaborate on. Good luck.


"Ruthenium"

on AbeBooks

or Amazon

(affil links)

Q. Also interested in methods involving Ruthenium electroplating.

Thanks,

David W [last name deleted by Editor]
USN - Bangor, Washington




Q. DEAR SIR,
I AM STUDENT OF MSC ENGINEERING IN PAKISTAN.I NEED RUTHENIUM COATING PROCESS (METHOD, COMPOSITION OF SOLUTIONS, ETC., FOR MY MSC PROJECT.

I SHALL OBLIGE FOR YOU.

SHAHID RASUL
- FAISAL ABAD, PAKISTAN
2003



"Electroless Plating"
by Mallory & Hajdu

on AbeBooks

or eBay or

Amazon

(affil links)

A. Hello, Wayne, David, Shahid.
• "Electroless Plating" by Mallory & Hajdu has a chapter on electroless plating of Platinum Group Metals, including a couple of pages specifically on Ruthenium.
• Please see topic 50771, "Electroless plating of ruthenium or iridium" for an ongoing discussion of electroless deposition of Ruthenium.
• For discussions on additional Ruthenium deposition methods please see thread 22092 "Q&A's, Problems & Solutions on Ruthenium Plating Process".

Please feel free to post any questions. Good luck.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2004




Multiple threads were merged: please forgive repetition, chronology errors, or disrespect towards other postings [they weren't on the same page] :-)



Q. What does RUTHENIUM look like and if you have some could you take a picture of it and send it to the email address above? The reason I ask of it for is I'm doing a project for school on ruthenium in chemistry class. If you would and are able to, please do so at your leisure.

THANK YOU,

Jordan B [last name deleted for privacy by Editor]
- Birchwood, Tennessee, USA
2002



A. Gee, Jordan, there's a picture right here!

www.chemsoc.org/viselements/pages/data/ruthenium_data.html

Which you'd find in a short Google search. You'll notice it's just a silvery-white hunk of metal, kind of like silver, or platinum, or aluminum, or if your digital camera is a cheap as mine, like copper, or cardboard, or …

Good luck!

lee gearhart
Lee Gearhart
metallurgist - E. Aurora, New York
2002

----
Ed. note March 2022: That picture link is now broken, but google offers an 'image search'.



Is ruthenium safe?

wikipedia
Ruthenium

Q. Hi all,

I have come across jewelry shops that coats rings or pendants with either rhodium or ruthenium. I am interested in buying such jewelry, but I am quite uncertain about its safety. I have browsed online quite a bit and found that rhodium is used often. However, I have not found much about ruthenium. On wikipedia itself, it says ruthenium can stain the skin and be cause cancer.

I want to know for sure: Is ruthenium or rhodium safe? Even if the jewelry is worn at all times without taking it off?

Please let me know. Thank you very much

Pepe Hu
buyer - Champaign, Illinois, USA
April 20, 2009



The editor's fave "coffee table book" for years now...

The Elements by Theodore Gray

on AbeBooks

or eBay or

Amazon

(affil links)

A. Hi, Pepe. Nothing is sure but death and taxes. But the majority of all women's engagement rings and wedding rings, and all kinds of necklaces and bracelets are rhodium plated -- hundreds of millions of them -- so it's certainly generally accepted as safe.

I'm not as familiar with ruthenium, but Theodore Gray's "The Elements", says "... you're most likely to encounter ruthenium in jewelry, as a thin plating that has a darkish gray, pewter-like shine to it.".

Further, I do not see any reference to skin stains or carcinogeneity on Wikipedia as you report.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
April 20, 2009




Ruthenium Pen Plating Solution isn't dark enough

April 25, 2017

Q. Dear All,
I made my own ruthenium pen plating solution includes Ruthenium trichloride and sulfuric acid mixture.
It works very good but I am looking for a more black deposit.
What kind of blackening agent shall I add?

Hope to hear from you soon.
Regards,
Jalal

Jalal Jafari
- Isfahan, Iran




Q. Ruthenium plating on EN high phosphorus?
I need to plate Ruthenium black with under coat of Electroless nickel to meet 96 hours SST. Can you suggest a good activation method between EN and Ru, to get good adhesion? I have tried with palladium as catalyst between EN and Ru.

Satheesh Kumar
- COIMBATORE Tamilnadu, India
March 2, 2022




Closely related thread:

Topic 22092 "Ruthenium Plating Process"




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully 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 & unvetted; some names may be fictitious and some recommendations might be harmful.

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

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"