| abstract |
Provided is an oxygen absorbent capable of absorbing oxygen in an atmosphere even in an atmosphere with little or no moisture. (A) at least one transition metal selected from the group consisting of manganese, iron, platinum and copper; and (B) selected from the group consisting of aluminum, zinc, tin, lead, magnesium and silicon. An alloy containing at least one metal is subjected to an acid or alkali aqueous solution treatment to elute and remove at least a part of the component (B) to obtain an oxygen absorbent comprising a metal. |