Gallic acid, the basis for pyro, is extracted from oak galls. Catechol comes from black walnut shells. Hydroquinone comes from tree bark. They are all poisonous, but really, so what?Pyro is angelfood cake when compared to poop people flush down the loo by the kilogram.
== Nicholas O. Lindan Cleveland Engineering Design, LLC Cleveland, Ohio 44121 ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.