Peter L. Peres wrote: > Solder (Zn+Pb) should have even less problems than pure lead=20 > because the tin in the alloy serves as sacrificial anode when in = contact=20 > with acids or other electrolytes. So you get Zn salts, not lead salts = (or=20 > very little lead salts). Zn compounds are mostly not poisonous afaik. = ZnO=20 > is used as an ointment for sore skin ... Peter, Solder is Sn+Pb i.e., Stannum + Plumbum (Tin + Lead). Possibly, instead = of Sn, you typed Zn. But what you have said in the last sentence refers to = Zinc. Zinc oxide is used for treating certain skin ailments. Regards, Bala -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body