Bill said, > What is the life of colloidal silver if stored in a dark bottle at room temperature. <
If what you are making is silver particles suspended (floating around) in water (erroneously called *Colloidal* silver), the shelf life will be subject to outside influences like sunlight, magnetism, heat and cold, which can cause the silver particles to fall out of suspension to the bottom of the container, or plate out onto the sides of the container walls, or the particles will clump (aggregate) together into bigger particles and cause the water to obtain a color (yellow to gold, as the particles get bigger). If what you are making is silver particles dissolved into the water (called a *solution*, and erroneously called *ionic*), none of the above will happen. What most folks make is a mixture of the two, suspended and dissolved. A silver preparation that is mostly suspension will change color, etc., when exposed to those outside influences. A silver preparation that is mostly dissolved silver (a solution) will not. If you are using 30 volts or less and not overbrewing it (until it turns a pale yellow or darker), it is mostly dissolved silver and should last a long time. It is, however, possible to overbrew and still have a clear CS, as long as the ppm is low (this is subject to pH and other factors). After the ppm reaches a certain level, the particles begin to aggregate together even though it hasn't changed color yet. These larger particles are too big to be dissolved silver (so they are suspended), yet they are still invisible to the eye. But they are susceptible to sunlight, etc. This is why some clear CS will change color after a relatively short time, while others will seem to last forever. When using low voltage, you will brew a more stable CS when it is 5 ppm than when it is 20 ppm (assuming it is clear). Terry Chamberlin __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>
