Aloha, fun & authoritative answers -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Metal finishing Q&As since 1989

-----

Stainless Steel Pickling Solutions

Can someone indentify the process by which a nitric/hydroflouic based solution is developed and maintained. Sounds simple enough - but the materials are reactive and I am wondering if there are alternatives (ammonia bi-fluoride, I.E.)?

Phil Parsche
GM Finishing Shop - Pleasant Prairie, Wisconsin
January 23, 2008

Ammonium bifluoride is often used to supply the fluoride ion because of safety problems with HF. A typical solution is 25% Nitric acid + 8 oz/gal ammonium bifluoride.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
January 25, 2008

(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: