Frank,
Thank you very much for your analysis. I am very aware of the effect of dissolved gases on conductivity. You can just let the water sit in an open container without stirring, and watch it go up. I was not aware that household grade sodium bicarbonate was contaminated enough to affect the process. When I get a chance, I'll write Arm and Hammer. Making the assumption that the sodium bicarbonate is pure, and that there are 4 mg/L bicarbonate in the water at the start and that it is the limiting reagent available, what would be the concentration of the silver carbonate when all of the bicarbonate reacted? Do you think that would have any significant effect on the metabolism of the sol/ionic mix? I will also write Bruce Marx and see what he has to say. Did you note my question about analyzing the 170 V DC pulsed process sol? Jim -----Original Message----- From: FRANK CUNS-RIAL [mailto:f...@atlanticbb.net] Sent: Friday, September 30, 2005 4:52 PM To: silver-list@eskimo.com Subject: Re: CS>Re: 170 V pulsed DC process. Jim, without getting into heavy stuff, let me explain the diffculty in answering the question of "how many ppm of Silver carbonate you'd get..... If you were to start with pure bicarbonate, it would dissasociate into carbonate and we could then figure out the amount of Silver Carbonate but only if if we knew also knew how much Silver was available. You have two unkowns in your premisse .\One is tha fact that you use "household" grade bicarbonate not reagent grade. You don't know how much of it is impurities and above all you don't know what kind of impurities you are dealing with. I bet you have moisture, sulfates, carbonates and other impurities. That could be one of the reasons why you are not able to get a linear relationship between concentrations and conductivities. In addition, please keep in mind that dissolved gases, such as carbon dioxide and oxygen will change your TDS readings. The second issue is that if you are looking for the amount of Silver Carbonate, you need to know how much Carbonate (or bicarbonate) and how much Silver are available. Reactions occur until one of the reactants are exausted. This is called the Limiting Reagent or Reactant. Once this reactant is all used up, the reactions stops regardless of the amounts left over unreacted of any of the other reactants. So you'd need to know the concentration of the two ions (carbonate and silver) in order to determine the resulting - amount of Silver Carbonate. Your supplier has done this work experiemntally, knowing the amounts, the reaction parameters and the end result and thus is able to tell you what amounts of whatever you'll be getting if you operate under the same conditions.. Regards FCR Original Message ----- From: Jim Holmes <mailto:ami...@starband.net> To: silver-list@eskimo.com Sent: Friday, September 30, 2005 3:26 PM Subject: CS>Re: 170 V pulsed DC process. Frank, et al, The sol produces is clear, with a very faint gold tinge if looked at through the HDPE bottle, a few hours after the process. It does not precipitate.
