What's really ironic about Bismuth being considered, is the fact that it's usually obtained as a by-product of lead mining! Go figure... -Steve Gregory- > Re: Bi, > > I am a little surprised to see Bi as a leading candidate. At a seminar I > attended, the subject of Bi in solder was discussed. I thought I heard that > Bi was meeting resistance, especially in Europe, because the environmental > issues with it were worse than the lead it was replacing. Not being a > chemist, I don't know which is worse from a landfill toxicity viewpoint - > 2%Bi or 37%Pb. It is also quite possible I misunderstood what was said about > Bi! Is Bi as a component of solder an environmental concern? > > Thanks. > > ========================= > Bob Barr > Manufacturing Engineering > Formation, Inc. > ========================= > --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------