As a catalyst, the manganese dioxide does not participate in the reaction. The hydrogen peroxide breaks into two components, water and oxygen. The reaction is quite difficult to regulate. John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" ----- Original Message ----- From: "Alexandre Domingos F. Souza" To: Sent: Sunday, October 14, 2001 9:17 PM Subject: Looking at old PICLIST archives... >The simplest way to make oxygen is to combine manganese dioxide and topical >hydrogen peroxide in a bottle with a stopper and outlet tube. It foams and >the oxygen is released quickly. To maintain oxygen flow, drip hydrogen >peroxide into the container continuously. The manganese dioxide powder is a >catalyst and doesn't need renewal. Nice...but if the hydrogen peroxide has hydrogen, where does the hydrogen goes to??? ---8<---Corte aqui---8<---- Alexandre Souza taito@terra.com.br http://planeta.terra.com.br/lazer/pinball/ ---8<---Corte aqui---8<---- -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics