----- Original Message ----- From: <rogalt...@aol.com> > In a message dated 11/25/00 5:52:58 AM EST, i...@win.co.nz writes: > > > Hi Roger, > > I am not entirely clear what happens to CS in the digestive tract, I > have trouble finding reliable information...more work to be done. I am > still of the view that only Ag ions can pass into the blood stream.
The picture becomes clearer each time I answer your questions, Roger. > The solubility constant of AgCl (Ksp) = 1.8 x 10^-10 > When concentration [Ag+] = [Cl-] > > Ivan: That's an entirely arbitrary assumption for which there is probably no > evidence. Roger, Perhaps not, but then that would make all such solubility constants arbitrary, no? > then [Ag] dissolved = 1.34 x 10^-5 M > > Ksp = [Ag+][Cl-] > > 10.8ppm CS contains 1.0 x 10^-5 M so that is at the limit of solubility > with an equivalent amount of Cl-. > > Ivan: Again, a conclusion based on an entirely arbitrary assumption. The text book Ksp is all I have. > Higher concentrations of Cl- (product) gives higher concentration of the > reactant (AgCl), known as the common ion effect. > > Ivan: I think you are a might confused here. There is probably no > concentration of undissociated MOLECULAR AgCl to speak of. When the product > of the concentrations of Ag+ and Cl- reach the solubility product of AgCl > (for a given pH) AgCl CRYSTALS form. Also, the common ion effect is > exemplified when, say, NaCl is added. In this case, the Ag+ concentration > decreases in proportion to the increase of Cl- concentration. Roger, with a fixed amount of silver, the concentration of the silver in solution decreases to satisfy the Ksp constant in the face of rising chloride concentration. The solubility constant is the amount of dissolved salt (Ag+ and Cl- discrete ions) in moles per litre of solvent, for equal amounts of the component ions. A concentration greater than the solubilty constant results in that amount being precipitating as the molecular salt, AgCl which, as you say, is a solid. The common ion effect states : that a solute has a lower solubility in a solution containing one of its ions, and is expounded in Le Chateliers principle. In general, the solubility of a salt containing the conjugate base of a weak acid is increased by the addition of a stronger acid to the solution. However, if the anion of a salt is the conjugate base of a strong acid the salt is not soluble in the strong acid. The solubility of AgCl is unaffected by changes in pH because Cl - is the anion of a strong acid and therefore has negligible basicity. > The concentration of [Cl-] in HCl at pH2 is 1 x 10^-2 M > [Ag-] = 1.8 x 10^-10 / 1.0 x 10^-2 = 1.8 x 10^-8 M > > Ivan: I think you are ignoring the influence of pH on the solubility product > of AgCl(s). Otherwise, your calculation is OK. > > So only 1/500th to 1/1000th of our initial 10ppm CS will remain > dissolved, the rest is passed on as insoluble AgCl, although higher > temperatures increase the solubility and I am as yet unsure on the > effect of the H+ ions and other enzymes, proteins and so on. Also if the > concentration of Cl- anions drops in the duodenum the solubility of the > Ag+ ions will increase. > > What do you make of it? > > Ivan: I still need you to explain to me how clusters of silver metal > particles which have a net positive charge of one (as represented by CS) will > interact the way you have described above. I also need to know what is > present in the stomach which will convert the bulk of the CS which is in the > form of neutral silver metal into INDIVIDUAL silver ions. Roger This is not the representation that I believe is typical of CS at all, at least of LVDC CS. It is my contention that CS is the aggregation of single atomic ions, it is ions that are emitted from the anode and these form distinct crystal like structures of specific numbers and may even be arranged in fractal patterns. Far from each particle (group of atomic ions) having a single positive charge, it has the charge of the sum of the ions incorporated (more or less). If this were not so, then would any battery be able to be recharged? Ivan. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.215 / Virus Database: 101 - Release Date: 16/11/2000 -- 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>
