In a message dated 11/25/00 5:52:58 AM EST, i...@win.co.nz writes: << Subj: Re: CS>Production of Silver Chloride at pH 2 Date: 11/25/00 5:52:58 AM EST From: i...@win.co.nz (Ivan Anderson) Reply-to: silver-list@eskimo.com To: silver-list@eskimo.com 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 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. 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. 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. 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 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: 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>
