METHOD OF PREPARING CONCENTRATE OF SILVER OXIDES Russian patent published in 2010 - IPC C25B1/00 C01G5/00 A61K33/38 C02F1/467 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of preparing a concentrate of silver oxides and can be used in making highly effective preparations in medicine and veterinary science. The method involves pouring distilled water at 80°C into a chemically clean glass vessel, immersing a silver ion source holder into the water, connecting a direct current circuit and stirring the solution after appearance of electrical conductivity detected by a milliamperemetre. Stirring is repeated several times before appearance of excess concentration of silver ions in form of a brown, then black colloidal solution. The process is stopped when electrical conductivity falls. Silver oxides are removed from the electrodes into a prepared solution. The remaining solution cooled to room temperature is then separated in a centrifuge. The purified solution is then recycled and the precipitate with a small amount of water is poured into a container made from dark glass with minimal air space for subsequent storage.

EFFECT: obtaining a concentrate of silver (I) oxide which can be used to prepare a solution of silver ions for medical preparations by dissolving in distilled water and filtration of insoluble silver oxides.

2 cl