In a message dated 00-04-25 09:16:19 EDT, you write: << Guys, I never said the measurements were erroneous, I said that there is probably some other reason causing the low pH reading, perhaps ranging from CO2 inclusion to AgOH production, or possibly faulty / inappropriate pH measuring equipment. I mentioned pH test gear as a possible source of error with this quote in mind : "Chemical reactions between electrolytes and the measured solution lead to errors. The resulting precipitates clog the pores of the junction and thereby increase the electrical resistance considerably. The following ions react with KCI to form compounds of low solubility: Hg 2+ , Cu 2+ , Ag + , Pb 2+ , CIO 4" I have a glass lab grade pH electrode and am vigilant in keeping the junction squeaky clean. I accept that pH of HVAC CS is acidic... now why is it so? Ivan. >>
Ivan: I believe I addressed the CO2 issue earlier. As I said before, I don't believe that Ag+ is present in unadulterated, electrolytically produced CS, and even if it were, why would it clog "the pores of the junction" if a Ag/AgCl reference electrode were used. It seems to me that a saturated condition ALREADY EXISTS by virtue of the presence of solid AgCl, so precipitation specifically at the junction would be unlikely unless LOCAL temperature fluctuations caused periodic supersaturation. And even then, the supersaturated condition would be transient. Experience with READING a good quality pH meter should reveal measurement problems with CS, or anything else for that matter. Roger -- 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...@id.net>
