Sodium has large electronegativity as compared with other metals and is therefore high chemical activity. Due to this property, it is an obstacle in sodium fire and stabilization treatment of sodium. Therefore, the authors devised method for extinguishing / treating that ionically combines Na with Cl of calcium chloride to produce neutral and stable sodium chloride. Therefore, the authors devised a method for extinguishing / treating that Na+ form an ionic bond with Cl- of calcium chloride (CaCl2) to produce sodium chloride (NaCl) possessing the strong ionic bond and high thermal stable. From the understanding of basic characteristics (thermal analysis, elemental analysis etc.) and small scale demonstration tests, we obtained results that can be expected to be applied.
