My best recall is that Reagent grade is 35% concentration, and was the most pure for use in chemical lab work. Concentration levels over 35% were considered unstable but had some uses such as missile power generators and rocket fuel oxidizer.
----- Original Message ----- From: "Neville" <nevillem...@bigpond.com> To: <silver-list@eskimo.com> Sent: Thursday, September 25, 2008 5:37 PM Subject: Re: CS>Concensus of opinion > > ----- Original Message ----- > From: "James McCourt, Ph.D." <dr...@earthlink.net> > To: <silver-list@eskimo.com> > Sent: Friday, September 26, 2008 9:26 AM > Subject: Re: CS>Concensus of opinion > > > [Also consider REAGENT grade.] > > This would be fairly high percentage you are talking about here though > wouldn't it? My research suggests there is your 'plain' HP, (3% or 6% as > sold OTC), 'up to and including 35% Food Grade' HP, (which I can't get > pharmacists to co-operate with in my enquiries), and then it goes into the > higher percentages over 35%, eg; 70%, 90% etc, which comes into the > 'Reagent' terminology as it starts to get somewhat 'unstable' above 35%, (if > one doesn't know what one is doing that is)...would I be correct in saying > anything above 35% would fall into the 'Reagent' catagory...Yes? > > Perhaps the above descriptions could be a simple dialect thing regarding > 'definition' or 'terminology' and not a standard form of global definition > with regard to Hydrogen Peroxide. > > Thanks...Neville. > > > -- > 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> > >
