No passwords, No popups, No AI, No cost:
we earn from affiliate purchases

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
ted_yosem
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
  mfhotline


  -----

How do Acids Clean Pennies?




I'm a sixth grader, and I'm doing a lab about cleaning pennies right now. I used stuff like vinegar in bulk on eBay or Amazon [affil links] , lemon juice, and lime soda because I heard that acids clean pennies better. How do the acids clean the pennies?

Stephi
- Palo Alto, California, USA
2001


Yes my 4th grader has a project on solutions that cleans pennies - I need to know what type of solutions does this - and any idea on how we can present this project.

Bobbie Hereford
- Atlanta, Georgia
2003


A lemon with some salt will clean a penny.

Vexx E.
- New York City, New York, America
2003


A lemon will work but personally vinegar works better cause I am doing a penny experiment in the 8th grade and that is what we used we soaked pennies in vinegar for about 5 minutes we took the pennies out and they were clean. You know what? Ketchup works also.

Kaoru-Dono
- Cold Spring, Kentucky, USA
2003


I am also doing a science fair project about which liquids clean pennies the best. I tried to clean pennies with vinegar and it worked pretty well. I tried to clean a dollar coin and some silver coins with vinegar and it made a darkish brown stain. I guess vinegar is too strong of an acid to clean other coins with.

Minh P.
- Savannah, GA, USA
2003



Ed. note: Please see our F.A.Q. on the subject.



(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:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"