| abstract |
A method for producing a concentrated solution containing water, citrate ions and silver ions, comprising the following steps: a step of preparing a certain amount of trisilver citrate; a step of preparing a certain amount of citric acid, wherein the citric acid Is at least 19 times the amount of the trisilver citrate on a mass basis; and the trisilver citrate and the citric acid are mixed in a fixed amount of water to produce the concentrated solution. The process, wherein the amount of water is selected such that the concentrated solution has a citrate ion concentration of at least 300 g / L. A concentrated solution containing water, citrate ions and silver ions, having a silver ion concentration of at least 10 g / L. A dilute solution prepared by adding water to a concentrated solution containing water, citrate ions and silver ions. |