Antimicrobial silver solutions

A - Human Necessities – 61 – K

Patent

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Details

A61K 33/38 (2006.01) A61K 9/08 (2006.01) A61K 31/194 (2006.01) A61P 31/04 (2006.01)

Patent

CA 2733509

A method for preparing a concentrated solution containing water, citrate ions and silver ions, including providing an amount of trisilver citrate, providing an amount of citric acid, wherein the amount of the citric acid is at least 19 times the amount of the trisilver citrate by weight, and mixing the trisilver citrate and the citric acid in an amount of water to produce the concentrated solution, wherein the amount of water is selected so that the concentrated solution has a citrate ion concentration which is at least 300 grams per liter. A concentrated solution containing water, citrate ions and silver ions, wherein the concentrated solution has a silver ion concentration which is at least 10 grams per liter. A diluted solution prepared by adding water to a concentrated solution containing water, citrate ions and silver ions.

La présente invention a pour objet un procédé de préparation dune solution concentrée renfermant de leau, des ions citrate et des ions argent, comprenant lapport dune quantité de tri-citrate dargent, lapport dune quantité dacide citrique, la quantité dacide citrique étant dau moins 19 fois la quantité de tri-citrate dargent en poids, et le mélange du tri-citrate dargent et de lacide citrique dans une certaine quantité deau afin de produire la solution concentrée, la quantité deau étant choisie de telle sorte que la solution concentrée présente une concentration en ions citrate dau moins 300 grammes par litre. Linvention concerne donc une solution concentrée renfermant de leau, des ions citrate et des ions argent, cette solution concentrée présentant une concentration en ions argent dau moins 10 grammes par litre. Linvention concerne également une solution diluée préparée par laddition deau à une solution concentrée renfermant de leau, des ions citrate et des ions argent.

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