No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Faraday law examination

2004

Dear company,

I am a M.S student in chemistry facing with a problem that I hope help me. Since two months ago, I work on gold refinery ,but time of this process doesn't obey Faraday's Law and it consumes time 70 times greater. also I can't remove nitric acid interference at cathode and after passing 30 seconds my process doesn't go on.

Best regards

Mojtaba Safdari
electroplating - Tehran, Iran

You haven't described your process/experiment, Mr. Safdari, so it is very difficult to guess why it doesn't work. However, you cannot plate ions out of a solution which are not dissolved in that solution, so my first guess would be that there is little gold in solution.

You may be correct that the oxidizing power of nitric acid is fighting your attempt to reduce gold onto the cathode.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2004

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: