Marshall wrote:
> Scattering, basically lots of tyndall. Same reason that dilute milk appears > milky, scattering off of the minute fat particles. Scattering and absorption > are two entirely different and unrelated phenomea. The first has little color > (it can apear to give a blue cast due to the increased scattering of shorter > wavelengths, apparent in dilute milk, water the the sky), and the second gives > the entire liquid the complementary color if in the visible spectrum. The > first will appear milky, the second clear. Not entirely true. High concentration of small particles is never clear, always milky. See the photo. Clear means the concentration of particles is quite low, less than about 1 ppm. Usually above 1 ppm of particles the turbidity is quite obvious. The sample you sent me of your product has 0.85 ppm of particles and turbidity of 34.3 NTU, which is about normal. The turbidity of the cs in the photo is 230 NTU. Turbidity over 30 NTU starts to become noticable to the naked eye. The particle size is known to be less than 30 nm. I can post the particle size distribution of that colloid if you don't take my word for it. I call it milky, what would you call it? frank key -- 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: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the SUBJECT line. 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>
