Metal finishers helping each other -- No cost, No registration, No damn popups
(we earn from 'affiliate link' purchases, making the site possible)

Curated with aloha by
Ted Mooney, P.E. RET

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

  The authoritative public forum
  for Metal Finishing 1989-2025

-----

Agricultural lime sulfur to oxidize silver and copper

Can agricultural lime sulfur (23% sulfide sulfur) be used to oxidize sterling silver and/or copper ?

Emma L.Guy
silver smith hobbyist - Canada
2005

A. Why not try 5% solution(50 gm/1 lit water).

Good luck!

Goran Budija
- Cerovski vrh Croatia
2005

"Lime sulfur" is a preparation of calcium polysulfide. "Liver of sulfur" ⇦ this on eBay or Amazon [affil links] , usually used for the application you describe, is a preparation of potassium polysulfide. What I have heard from patination specialists is that the results will be similar, but not identical - the presence of the calcium alters the shade of the oxidized surface slightly.

Dave Wichern
Consultant - The Bronx, New York
2005

(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: