In a message dated 96-09-18 11:42:26 EDT, you write: > And another:where does the lead carbonate come ? > > Lead oxidizes to Lead Oxide, or Lead Hydroxide, (Lead Hydroxide = Lead Oxide + Water) then reacts with either Carbon Dioxide in the air (suspect less likely) or with Carbonates in water (suspect more likely) and Bingo! *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************