Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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

The authoritative public forum
for Metal Finishing since 1989
-----

Stainless steel blackening relief

We have blackened stainless steel food bowls with bichromate sodium and we need to relieve the blackening from the inner surface with chemical solution.
Would someone know this solution?

AMR MOBARAK
- CAIRO, EGYPT
2006

Hello, Amr. I think that was a very bad idea. I do not think you should sell a bowl for food service that was blackened with sodium dichromate because hexavalent chromate is a carcinogen.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006

(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: