Home /
Search 🔍
the Site

World's #1 finishing resource since 1989
No login needed: Chime right in

topic 59556

How to Remove Oil content from Hydrochloric Pickling Acid

March 10, 2014

Q. During electroplating cleaning of furniture items by hydrochloric acid, which after a long time is mixed with oil content from the oil which comes on iron sheet of some freshly produced furniture items and this causes plating surface stripped after plating. Please suggest me how to remove oil content from acid.

susheel daga
- jodhpur, rajasthan, india

March 2014

A. Hi Susheel. Oil should float on top of mild pickling acid, and be relatively easily removed with an oil skimmer or by floating non-woven polypropylene cloth on top of it; the oil will have an affinity for the polypropylene and the water will not.

However, you should not put oily parts into pickling acid. The acid should be preceded by an effective cleaning procedure including alkaline electrocleaning followed by rinsing, so that almost no oil ever gets to the pickling tank.

You should then observe the work as it exits the pickle tank to make sure there is no water-break. Good luck.


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

help wanted ad
Junior Quality Engineer [Santa Clara, CA]
Plating Process Engineer [Wenatchee, WA]
Plating Supervisor [Chicago]
Plating Quality Inspector [Chicago]

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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:

Chemicals &
Consult'g, Train'g
& Software

About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA