url: http://escribe.com/health/thesilverlist/m63380.html CS>CS particle size From: Gaston Date: Sat, 11 Oct 2003 06:47:41
> To anyone that wishes to comment pls. > Here is a comment taken from the following web site: > http://www.elixa.com/silver/lindmn.htm > "It's In The Water > ... Another variable that influences particle size is the water > temperature. The warmer the water, the faster the reaction will > take place, and the smaller the particles will be. " > Is this correct: The warmer the water, the smaller the particles > will be ? or am I reading this incorreclty ? > I understand that the reaction will be faster but what about > particle size ? > Thank you. > Gaston Hi Gaston, As Ken pointed out, increasing the temperature results in increased particle size. You can see the effect in Reid Harvey's work on ceramic water purifiers using silver oxide. A picture is on his web page at http://www.purifier.com.np/CS.html One of the reasons this happens is the cs generator uses constant voltage. With no current limiting, the current can increase to high values as more silver ions enter the solution from the anode. The hydroxyl ion, OH-, forms at the at the cathode where hydrogen accepts electrons to form hydrogen gas. So we have a supply of silver ions, Ag+, and hydroxyl ions, OH-, in the solution. These ions spread by thermal diffusion and by convection currents to arrive at the opposite electrode from where they were generated. Each electrode has the highest concentration of ions near the surface where they are formed. This is called the Nernst diffusion layer. When the opposite ion reaches this thin layer, there is a high probability of forming silver oxide and silver hydroxide. The probability increases with current, temperature, and the concentration of ions already in solution. These initial particles are too small to see, but they can meet and be held together by van Der Waals forces. In other words, they agglomerate. High temperatures cause the current and thermal velocity to increase. This means higher production of silver oxides. With more oxides present in the solution, there is a higher probability they will meet and join and become bigger. The resulting solution is a different color than the normal yellow tint you see at room temperature, indicating the particles are larger. So, unfortunately, the statement at the elixa page is incorrect, as is so much of the published information about cs. 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: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
