----- Original Message ----- From: <rogalt...@aol.com> > Ivan: > > You said, > > "If one strikes an arc in moist air (as found above a body of water), > ozone and nitric acid are formed." > > During sputtering I smell virtually no ozone. I am interested in your idea > about nitric acid though. I may submit a sample for analysis. But before I > do, I'd like you to tell me the difference in taste between my HVAC CS with a > pH of 4 or so, and a sample of laboratory grade nitric acid made to pH ~4. If > you agree to a taste test, I'll submit my HVAC CS for nitric acid analysis.
The fact that you have generated an arc necessarily means that you have ionised the air. This can be achieved by as little as 50 V. By ionising air you are creating ozone. Whether you can smell it or not is not a reliable guage of its production or concentration. It is a fact that the biggest problem that faces ozone generators using undried atmospheric air is the production of nitric acid. I have no desire to experience the taste of dilute nitric acid :-b Whether you test for nitric acid is up to you. > Then you said, > > "If you use silver electrodes the silver will be sputtered as silver ions and > silver oxide." > > I'm afraid I'll have to disagree here as well. It can be demonstrated quite > easily that silver oxide is unstable at sputtering temperatures. As far a > producing silver ions in the arc goes, I have not run across any evidence > that an electropotential that is barely high enough to ionize air, is > anywhere near the electropotential required to ionize silver. If you have > some data that confirms the production of silver ions at ~10,000 volts please > pass it along. The 1st ionization potential of silver (7.576 eV) is less than that of oxygen (13.618 eV). Yes, silver oxide is unstable at >150 degC, but the silver oxide which contacts the water is from then on stable. Furthermore, "The pH of silver colloids should fall between 6.5 and 8 because increasing amounts of silver oxide will appear as the pH of the solution falls below 6.5 and silver oxide is a less effective bactericide than pure silver." (The Silver Institute). > And finally you said, > > "The ozone will most likely become H2O2 where it reacts with water,..." > > Oh boy, I know I'm on thin ice now, but I'm not likely to agree with you here > as well. I sampled a very small amount of 3% H2O2 in my mouth a few weeks > ago. A very ugly experience. Again, my HVAC CS tastes a lot like water. So > how much H2O2 could I have made, particularly when I never smelled any ozone > in the first place? I don't know Roger. I answered Bob's question about what might be causing such a high conductivity reading with a comparatively low silver content. Something is also causing the low pH (assuming he started with ~pH7 water), I suggest that H2O2 and nitric acid may be contributing factors. BTW, I regularly use 3% H2O2 to clean my teeth ;-) > Roger Regards, Ivan -- 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: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: silver-list@eskimo.com Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <mdev...@eskimo.com>
