Yes and no. If it is soft, I am pretty sure it is rather pure and annealed. If it is hard, then it could be pure, and tempered or work hardened, or an alloy. I only indicated that if it was soft it was most likely rather pure. The opposite is not necessarily true.
Marshall Ode Coyote wrote: > Pure copper work hardens pretty fast, so hardness is not an indicator of > purity. > Just bend that soft tubing a few times and you'll see. > It was annealed so you 'could' bend it. > > ode > > At 12:07 PM 10/24/2003 -0400, you wrote: > >Also I believe the soft copper pipe is pretty pure copper. Not the had > kind, but > >the kind that is easy to bend. > > > >One should be able to buy a few feet of large diameter tubing (3/4" will > produce > >about a 2 3/8" wide sheet), cut it to length, and cut it lengthwise. Then > open > >it up to make a sheet out of it. > > > >Marshall > > > >Al Davis wrote: > > > >> Electrical copper wire is 99.95% minimum purity. Cheap, too. > >> > >> Do a search for 99.95% copper and you'll get lots of references. > >> > >> Al Davis > >> > >> > I keep trying to think of something that's made out of pure copper and > I'm > >> > just not getting there. > >> > >> -- > >> The silver-list is a moderated forum for discussion of colloidal silver. > >> > >> Instructions for unsubscribing may be found at: http://silverlist.org > >> > >> To post, address your message to: [email protected] > >> > >> Silver-list archive: http://escribe.com/health/thesilverlist/index.html > >> > >> List maintainer: Mike Devour <[email protected]> > > > >
