Frank Key wrote:
>Have it your way. > >Sorry for introducing the science chemistry here. > >I'll try not to make that mistake again. Science means you have cites. Can you refer me to one? I have checked 6 college chemistry books, and can only find 3 paths for ozone decomposition (without oxidizing something). They are: In the stratsophere O3 + O = 2O2 In concentrated forms 2O3 = 3O2 When mixed with NO + O3 = NO2 + O2 (this one is oxidizing though) Where do you find this information? I can taste a couple of drops of H2O2 in a glass of water, and cannot taste any in my prepared ozonated water. A search of the net tends to indicate that ozonated water is NOT the same as water with H2O2 added. Every reference I can find indicates that ozonated water does NOT become H2O2. For instance this site http://www.awwarf.com/exsums/90607.htm indicates that TCE, PCE, and MTBE are not removed effectively with ozonated water, but are with H2O2 added. If ozonated water is H2O2 water, then there should be no difference. A site on aquariums contends that ozonated water is very healthy for an aquarium, but adding H2O2 will destroy it. For paper: http://www.ntnu.no/gemini/1994-02E/sog_side_49b.html Hydrogen peroxide is very expensive, and it may not brighten the pulp sufficiently. Ozone will, together with oxygen and reduced amounts of hydrogen peroxide, give acceptable brightnesses. The plants must invest in an ozone facility to produce their own ozone at the mill. Which once again indicates that ozonated water is more active then H2O2. This paper indicates that O3 does not become H2O2 upon breaking down, but forms an OH radical instead: http://www.sph.unc.edu/envr/esenotes/fall95/whg.htm Hoign_ was the first to realize that ozone (O3) acts by two mechanisms: "direct" O3 chemistry and hydroxyl radical (OH) chemistry. OH is formed when O3 decomposes in water; OH is a powerful oxidant, even more powerful than O3 in most cases. OH can also be produced in water by other processes such as the reaction of hydrogen peroxide with Fe(II) [the Fenton reaction], the photolysis of ozone or hydrogen peroxide, the irradiation of water with g rays or electron beams, and upon absorption of UV photons by semiconductor oxides such as TiO2 suspended in water. These processes are now referred to as Advanced Oxidation Processes (AOPs) and as a group they are being investigated worldwide as control and remediation processes for water and wastewater treatment. This indicates that O3 reacts with H2O2 to form OH ions, which confirms many of the above references: http://www.azco.bc.ca/info/ozone.htm Coupling Ozone with Hydrogen Peroxide will cause the formation of very active Hydroxyl ions which initiate a nucleophilic attack on organic compounds. This can result in the displacement of Halogens and other functional groups such as Amines, Sulfides. This indicates that ozonated water decomposes into water and oxygen, since H2O2 would be a definite trace. http://www.familyhealthnews.com/32.html Ozone is used chiefly in disinfection of water systems. Ozone, a 3 atom form of OXYGEN, is a normal element in the earth's atmosphere. Its presence, often detected after a lightning storm, is by its sweet, fresh odor. Ozone will attach and destroy, by oxidation, any offending molecule that gets in its path. It rapidly decomposes leaving no traces and does not produce any toxic halogenated compounds. Can you provide any reference to support your contention? Marshall -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
