url: http://escribe.com/health/thesilverlist/m62805.html CS>Re: Thanks Mike! -- Yellow tinted CS!! From: Douglas Haack Date: Fri, 26 Sep 2003 20:59:42
> Mike Monett, > Thanks for taking the time to explain it all. I will be keeping > your explanation and will certainly look up the references. > In Silvation, DH Thanks Douglas. I hope it made some sense. It might take a while to absorb - there is a lot of information. I like making simple experiments that anyone can perform to illustrate some basic part of the process of making cs. Here's another simple experiment that shows the tremendous influence of the Nernst diffusion layer. Take some high ionic cs - say 20 ppm, and pour one inch in a glass. Let it sit for a week or so until most of the water has evaporated. Mine took longer than that - it depends on the relative humidity where you are living. Anyway, I waited until there was only 1/8 of an inch left in the bottom. This means the ppm increased by a factor of 8. The cs was still clear and showed no tint whatsoever, even though the ppm was around 80. I then added a bit of salt to do the famous salt test. The reaction was so dramatic I have dfficulty telling you how surprised I was. Normally, a high ppm will show a very strong dispersion in the salt test, and it will obscure objects behind the glass. This dispersion was the strongest I have seen to date, and completely blocked anything behind the glass. But when I looked at it under the microscope, the silver chloride particles were large enough to be plainly visible. The conclusion is cs can exist at high concentration without combining to form silver oxide. This means the concentration of ions in the Nernst diffusion layer must be very high indeed. Much higher than a factor of 8. And this is what limits the maximum concentration of silver ions you can achieve with electrolysis. This led to another experiment, which unfortunately failed miserably. Recall my earlier posts on making ions visible. It seems to take about 40 minutes for the silver ions to reach the cathode, and presumably the same amount of time for the hydroxyl ions to reach the anode. The process of ions combining to form silver oxide cannot start until the ions reach the opposite electrodes. I read somewhere the conductivity of ice is higher than plain water, so my plan was to immobilize the ions by freezing the dw. I got everything set up on top of the fridge, and put my cs generator in the freezer. Later, when I went to look at it, the ice had frozen and it broke the glass in my cs generator. This is a minor catastrophe, as it took a lot of searching to find a glass with straight sides that was the proper diameter to fit my lid. But I figured the experiment would run fine, even thought the ice was no longer contained. Who cares, I said. It's a block of ice! I turned on the power and started taking notes on the process. Well, it didn't work. The conductivity was zero. Even with 155 volts across the electrodes, no current flowed through the cell. This makes sense. The stray ions in the dw need to be mobile so they can reach their respective electrodes and start the process. So whoever felt that ice was a better conductor than plain water perhaps never actually measured it to find out. So we learned something. Plain common sense works a lot better than believing everything you read on the web:) Best Regards, Mike Monett -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org 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>
