As others have mentioned, cities often have haz mat disposal groups. You might also want to checkout local hospitals or research universities. They most certainly will have a haz mat disposal procedure. Whether or not they will take outside chemicals is questionable. --- Tracy Sullivan <[log in to unmask]> wrote: > Has anyone ever had to dispose of a hazardous > substance? ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).