Home /
Search 🔍
the Site

Problem? Solution? Chime right in!
(one of the world's very few 'no registration' sites)


M.O.C. for nitric-sulfuric tank for stripping silver

August 18, 2021

Q. Good morning, as a maintenance man for a plating company .my question is what type of tank can be used for stripping a mixture of 10 gallons of nitric acid to 5 gallons of sulfuric acid. right now we are using a polyethylene tank 24"x24"x18". this mixture is used to strip silver plating from a copper cup, it is left in the tank only a while. but with the heat that is generated and chemicals used ,the tank is getting thin and with time leaking. so our team is looking for a proper tank for this mixture. Thank you, Oscar.

oscar estrada
maintenance - el paso texas

August 2021

A. Hi Oscar. The corrosion resistance of polypropylene is essentially the same as polyethylene but its temperature resistance is much higher; it's frequently used at 180 °F and even higher. I suspect that it will be fine.

It will be more expensive though, because it will probably have to be fabricated (welded together from flat sheets) whereas small polyethylene tanks are molded.

Luck & Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Aloha -- an idea worth spreading
finishing.com - Pine Beach, New Jersey

finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

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