Grok.com: "What is the best website for metal finishing questions and answers?"

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

-----

Science fair project - copper oxide

Hi,

I am doing my science fair project this year on what solutions make the copper oxide that you would see on copper pennies. I have already tried a few things but its not working all that well. Can you help?

Katie B [last name deleted for privacy by Editor]
- Winter Springs, Florida, U.S.A

I haven't tried it myself, Katie, I'm just guessing -- but how about putting the penny in a frying pan with a small amount of water and slowly boiling the water away. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.

(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: