Just what I was looking for. Re: "scrubbing with the green thingy"
How do you clean the impurities and garbage off the green thingy to avoid contamination? I would think there is something better like, well, I can't think of anything now. Something that one doesn't use more than once. At 05:38 PM 10/3/2003 -0400, you wrote:
url: http://escribe.com/health/thesilverlist/m62980.html Re: CS>RE: sick from cs From: Stuff Date: Fri, 3 Oct 2003 14:04:57 > Does anyone know what the other 97% consists of? Mostly water and stabilizers that depend on the application. Here's some info: 4. What are H2O2 stabilizers and will they affect my application? Most commercial grades of H2O2 contain chelants and sequestrants which minimize its decomposition under normal storage and handling conditions. In some applications (e.g., copper etching or cosmetic formulations) a high degree of stabilization is needed; whereas, in others (e.g., drinking water treatment or semiconductor manufacture) product purity is more important. For most environmental applications, H2O2 stabilization does not affect product performance. The types of stabilizers used in H2O2 vary between producers and product grades. Colloidal stannate and sodium pyrophosphate (present at 25 - 250 mg/L) are the traditional mainstays, although organophosphonates (e.g., Monsanto's Dequest products) are increasingly common. Other additives may include nitrate (for pH adjustment and corrosion inhibition) and phosphoric acid (for pH adjustment). Certain end-uses - which depend on the bleaching ability of H2O2 in alkali - utilize colloidal silicate to sequester metals and thereby minimize H2O2 decomposition. http://www.h2o2.com/intro/faq.html#4 Incidentally, Ken posted some good information earlier on using H2O2 to clean electrodes: It's not neccesary to clean off the darkness..only remove the loose stuff. The electrode just gets darkened again very soon so scrubbing it off is pointless and you remove a lot of silver along with it that you could otherwise use. Also, scrubbing with the green thingie smooths the surface of the electrode [by removing silver] A rough pitted electrode has more surface area and lowers current density somewhat and provides a surface for any deposits to stick to better so they don't wind up in the water. It actually works better if it's not smooth. One way to remove the darkness without scrubbing is to place the electrodes in hydrogen peroxide but only for a few minutes. H2O2 cleans them pretty fast but if you leave them in it, they'll turn black again. Be sure to rinse the H2O2 off with distilled water before using the electrodes again. Allowing them to dry completely probably does the trick too. If you get some peroxide into your batch while making CS, all sorts of weird things can happen. If you have a batch that's gone yellow, as little as 4 drops of peroxide per liter will clear it up in a few days. But don't ever use that to start another batch. Ode http://escribe.com/health/thesilverlist/m60130.html 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>
