Malachite differs from cupric hydroxide in that it is not a gel so copper content is higher. It also is amenable to reconstitution to other forms. This has been done for years through mining and bulk chemistry. I am in no way selling anything, but simply am inquiring if others have done this and found a market. Perhaps, you have credibility and clout. You're right: I'm a nobody. I just work for a board shop. You have inside contacts with the IPC administration. The costs of waste treatment are minimal at the shop here like everywhere else; and everyone's prepared for the Clean Water Act should it come. Please carefully read your first response. I offer this posting as the root of my question, free, to the group. Your response was misleading, even intentional in my naive opinion. I don't care to get into a hauling fee debate or flame war. I will not apologize to you per se, but to the group for this matter arising, and if this upsets you, contact the IPC administration. Have them post me. Pure questions ought to be welcomed on the forum. Why rebuke (That's not to say do not respond to) technology that is competitive? Is TechNet merely customer service for existing companies, or a forum for true technological discusssion? I appeal to the IPC administration to let this message post. Take care of yourself first, [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************