METHOD OF PRESERVING ARCHAEOLOGICAL FINDS MADE FROM IRON AND ALLOYS THEREOF Russian patent published in 2013 - IPC C23F17/00 C23G5/00 B05D3/10 

FIELD: chemistry.

SUBSTANCE: method involves cleaning an archaeological object, hydrothermal treatment of the object in a diluted alkaline solution at temperature of 100-250°C and pressure of 10-30 atm for at least 1 hour, washing until complete removal of chloride ions and drying, followed by depositing a protective coating. After washing, presence of chloride ions in the prepared archaeological object is inspected.

EFFECT: invention improves preservation of archaeological finds made from iron and alloys thereof and information contained therein, while simplifying and reducing the cost of the method.

2 cl, 2 ex