At 11:07 AM 11/18/2009 -0600, you wrote:
From http://www.h2o2.com/applications/industrialwastewater/photowaste.html: "Silver Recovery Ionic silver is precipitated by hydrogen peroxide primarily as metallic silver. The reaction is: 2 Ag+ + H2O2 ----> 2 Ag0 + H2O + 1/2 O2
2 AgO looks like silver oxide to me, not metallic silver unless I missed a definition somewhere...like rust is metallic iron. That would explain why EIS [CS] turns murky brown if the H2O2 is added before the ions hydrate and "hide out"..the murkiness would be an Oxygen emulsion and the brown color, the oxide.
Gong into another definition in context with waste treatment: "Ionic silver" will be something like Silver Acetate solution and not "just" silver ions in water.
Ode
The weight ratio of hydrogen peroxide to silver, based on the above equation, is 0.15 to 1.0. Tests have shown that the silver content can be reduced to less than 0.1 microgram/L using hydrogen peroxide treatment." This following links do not add much to the question of what actually happens when you combine H2O2 with CS but they are informative: H2O2 and Colloidal Silver http://www.silvermedicine.org/h2o2.html Commentary on Hydrogen Peroxide ( H2O2 ) and Colloidal Silver http://www.silvermedicine.org/h2o2archives.html - Steve N -----Original Message----- From: Ode Coyote [mailto:odecoy...@windstream.net] Sent: Wednesday, November 18, 2009 4:10 AM To: silver-list@eskimo.com Subject: Re: CS>tyndall again Maybe: For the same reason that all of the silver ions don't combine with the Hydroxyl anions to make all of it into silver hydroxide...."Hydration" Dunno if this is the way it is, but here's the idea. Ag ions have a positive charge, waters oxygen has a negative charge. While not enough to make a compound, could it be that the two have an attraction strong enough that it prevents other compounds from forming, in effect, the water with Oxygen atoms surrounding and isolating the Hydrogen [Dipolar?] protects the silver ion after it has hydrated with the water [which takes time] leaving silver oxides [yellow] hanging out there, exposed for the oxygen radical of the H2O2 to strip the oxide of its oxygen atom. By the same token, AgO seems a bit unbalanced Ag+ and O - - would give AgO a negative charge that water may repel rather than attract... and Oxygen atoms very much like to pair up into O2 molecules. If you dip an oxide blackened electrode in H2O2, it will dissolve that oxide almost instantly. That H2O2 also clears up yellow CS shows that the yellow is at least partially a pigment from suspended oxides. But the H2O2 will oxidize silver ions just as readily if they aren't protected somehow...hence...murky brown CS if the H2O2 is used too soon. ..and using very fresh CS before it has the silver ions hydrated, just might set up a sort of preference of attraction in the internal biosphere where the silver prefers the water that's there over the water it came in. Sketchy, I know...but many people including myself sense a sort of "boost" after drinking very freshly made EIS [CS] Ode At 04:02 PM 11/17/2009 -0800, you wrote: >Why would it not oxidize the CS? > -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>