I can think of 4 ways of testing for CS. 1. Shine a laser through the bottle or through some of the liquid in a clear container. In a dark room you should see at least some tyndall effect (can see the beam in the liquid). 2. If you have a good sense of taste you can swish some in your mouth for a couple of minutes. After that there should be a slightly bitter or metallic aftertaste indicating the colloidal silver or EIS. 3. Put some liquid in a shot-glass. Put a few sprinkles of salt in it. You should see a slight cloudiness or bluish cast forming over time. Have indirect light behind it. 4. Depending on the quality of the CS/EIS you may be able to get it to react with hydrogen peroxide. Put some CS in a shot-glass and add a drop of (drugstore 3%) H2O2 to it. Watch it closely right from the start. It may react by going cloudy for a while or changing color or something. Add a few more drops if there is no effect within a short time. For all of these cases, the tap water should show no effect. Dan
________________________________ From: Silver Smith [mailto:cag....@gmail.com] Sent: Monday, June 19, 2006 1:05 PM To: silver-list@eskimo.com Subject: CS>Is it water or CS? I have have been saving, cleaning and using empty soft drink bottles to store and give away CS in. I have several bottles (green) old Sprite bottles on the shelf full of something? Is there a way to tell if I have put CS in them OR if they are just in the cleaning process and have water in them? I usually clean 1st with tap water and let them sit a bit. I have tried to use my TDS meter but my tap water has a similiar ppm reading to my CS. Do I remember something about dropping some salt in an aliquot and it will form AgCl and turn cloudy? Thanks, AG