The present invention provides a novel oxygen absorber composition and an oxygen absorbent packet using the same to obtain an oxygen absorber not responding to a metal detector. The inventive oxygen absorber controls the increment of odor concentration after oxygen absorption and exhibits a superior oxygen-absorbing property within a wide range of moisture condition of from low humidity to high humidity. The inventive oxygen absorber composition comprises at least one compound of tetrahydronaphthalene having the following general Formula (1) and a transition metal catalyst: (in Formula (1), R1~R8 are each independently hydrogen atom or at least one monovalent substituent selected from the group consisting of halogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, heterocyclic group, cyano group, hydroxyl group, carboxyl group, ester group, amide group, nitro group, alkoxy group, aryloxy group, acyl group, amino group, thiol group, alkylthio group, arylthio group, heterocyclicthio group and imide group, in which the above identified substituents can be further substituted and two substituents selected from R1~R8 can bond together to form a ring).本發明係以提供一種新穎吸氧劑組成物及使用其的吸氧劑包裝體等,可實現金屬偵檢器為不會感應的吸氧劑,抑制氧吸收後之臭氣強度之增加,並具有在由低濕度至高濕度為止廣範圍的濕度條件下之優異氧吸收性能。本發明的吸氧劑組成物,其係含有至少1種具有下述一般式(1)所示四氫萘環之化合物、及過渡金屬觸媒,(式(1)中,R1~R8分別獨立示為氫原子或一價取代基,一價取代基為選自於由鹵素原子、烷基、烯基、炔基、芳基、雜環基、氰基、羥基、羧基、酯基、醯胺基、硝基、烷氧基、芳氧基、醯基、胺基、巰基、烷硫基、芳硫基、雜環硫基及醯亞胺基所成之群之至少1種,此等可進而具有取代基,R1~R8中的2個取代基可鍵結而形成環)。
