The equation is wrong for the description. The correct equations are:
Oxidizing reactions producing silver oxide and silver hydroxide:
2Ag + H2O2 -> Ag2O + H2O
2Ag + H2O2 -> 2AgOH
Reducing reactions producing 2 atom colloid of silver particles:
Ag2O + H2O2 -> 2Ag + H2O + O2
2AgOH + H2O2 -> 2Ag + 2H2O + O2
Marshall
Ode Coyote wrote:
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>
