It really depends on the stability. I have seen some EIS settle out at least somewhat after a couple of months, and have seen other stay fully in colloidal and dissolved form for years. I believe that generally the more clear and less color it has, the less likely it is to precipitate out. But other things like impurities in the water and for some EIS exposure to light can also have an effect.
You can evaluate it pretty easily though. See if there is any black or dark gray settlement on the bottom, and use a laser to check that the tyndall is still there. Marshall debbie cozens wrote: > how long can one keep CS for???is it okay after 3 years? > Send instant messages to your online friends > http://uk.messenger.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 Silver List archive: http://escribe.com/health/thesilverlist/index.html Address Off-Topic messages to: silver-off-topic-l...@eskimo.com OT Archive: http://escribe.com/health/silverofftopiclist/index.html List maintainer: Mike Devour <mdev...@eskimo.com>
