Sciencemadness Discussion Board - Will a water-salt solution oxidise copper??

Will a water-salt solution oxidise copper??

The Fountain of Discordia - 14-6-2009 at 04:30

Just wondering, because I wanted to make some Cuprous Oxide, and my resources are limited to the point of nonexistence, And my budget for the next quarter of the year is almost totally spoken for.

Hydragyrum - 14-6-2009 at 04:59

I believe when you heat copper metal in air (to red heat) you get red copper(I) oxide forming on the surface, which probably can be scraped from the remaining metal as a powder, as it is normally found.

UnintentionalChaos - 14-6-2009 at 08:32

Do you need it to be terribly pure, or is something that's mostly Cu2O acceptable?
If the latter, http://webpages.charter.net/dawill/tmoranwms/Chem_Cu.html

All further questions should be directed toward 12AX7.

[Edited on 6-14-09 by UnintentionalChaos]

JohnWW - 14-6-2009 at 11:24

Quote: Originally posted by Hydragyrum

I believe when you heat copper metal in air (to red heat) you get red copper(I) oxide forming on the surface, which probably can be scraped from the remaining metal as a powder, as it is normally found.

I remember reading on another thread that bulk quantities of Cu2O can be made by heating finely-divided copper, as filings or similar powder, for a long time in air until there is no further change in its appearance. I think it is used as a dark brown or "bronze" paint pigment.