Tyndall is observable when particles are generally of the colloidal size, still large enough to reflect visible light. CS samples which are made to be a solution (smaller particle sizes) do not reflect much, if any, visible light. You will observe a Tyndall by shining any highly directional beam of light (flashlight or laser light) through the cs sample. While in distilled water you will not see the path of light in the water, with colloidal sized particles you will see the path of the light. Due to the reflection of light away from the beam, the beam will appear to get narrower in diameter. This may not be evident with the laser pointers because the beam is already so small. So Tyndall is a way to see if you have colloidal sized particles in your sample.
Jim D. Garrett wrote: > what is tyndall and is it good or bad? > Dennis > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > > List maintainer: Mike Devour <[email protected]> -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>
