----- Original Message ----- From: <[email protected]> > Hi Ivan;
G'Day Bob, > Thanks for the responce. I have printed it out so I can now "loose it" in > the files :) > The spectrophotometer reads only the ionic portion. I guess that I will have > to ask Marshall to run through the digsetion process, as the fumes are very > hazardous. Do you need to treat your CS in a specific manner to isolate the ionic portion? > I will set up to day and run your parameters, but I have a question. If you > product is totally ionic how can it be called colloidal silver as a colloid > is metal. I'm not sure if I understand you here Bob. A colloid is simply a description of a state wherein particles are distributed thoughout a medium (solid or liquid) and the particles are of size range (1 - 1000 nm) which is too small to be considered a suspension and too large to be thought of as disolved. The particles may or may not be metalic, and may be electrically neutral or charged (ionic). Ionic particles are simply atoms, molecules or particles which have lost or gained electrons and are not electrically neutral. Some people use the term ionic to mean disolved elements or compounds (physics vs chemistry, organic chemistry vs inorganic chemistry) which just causes confusion. A totally ionic colloid, as far as I am concerned, is a colloid composed of ions, be they single atoms or multiatomic, or a mixture of both. > In talking to my chemist friends nitirc acid will not dissolve silver > colloid unless one boils it dry and does some reconstituting and > normallizing (HELP). Normally nitric acid will turn silver black > immediately and attack it very vigiorously, but not in the colloidal state. That is understandable if the colloid is ionic. Ag+ ions have already been oxidised (lost an electron) and considerable energy would be required to remove further electrons, so no reaction. What is the object of reacting silver with nitric acid? Would this not produce silver nitrate? > How about some of you chem techies putting in about 3 cents worth right > about here????? > > Ivan, send your mail address off list as I would like to send you some > things. [email protected] > "Ole Bob" Regards - Ivan. -- 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]>
