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The emission of the Auger electrons during the formation of the Mossbauer nucleus Fe-57 leads not only to the formation of multicharged Fe-57(n+) ion, but also to the appearance of the Auger blob, a cloud of several hundreds of ion electron pairs (H2O+, e) in the solvent around the Fe ion. Fast radiation-chemical reactions therein determine the experimentally observable ratio of the yields of final chemically stable charged states of the Mossbauer ions (Fe3+ and Fe2+). This ratio strongly depends on reaction rates constants between H2O+, e(-), and the solute S. We have shown that in contrast to radiation chemical data the reactivity of NO3- anions with quasi-free track electrons in frozen aqueous solutions exceeds those of H3O+, ClO4-, and HSO4- ions only by a factor of three instead of approximate to 100 which follows from the radiation chemical experiments.

Primary Radiolytic Reactions in the Auger Blob Formed by Radioactive Transformation of ^{57}Co into ^{57}Fe in Frozen Aqueous Medium