Fine and Hyperfine Interactions with Multi-level Spin Relaxation of the purified Giese-Salt in Veterinary Medicine: Prussian Blue Compound Ammonium-Ferric-Hexacyano-Ferrate

TL;DR

This paper investigates the complex magnetic and structural properties of ammonium ferric hexacyanoferrate, a veterinary antidote for radiocesium, highlighting its potential in biomedicine and nuclear incident response.

Contribution

It provides new insights into the spin relaxation and nanostructural chemistry of Giese-salt, emphasizing its biomedical relevance and properties in nuclear safety.

Findings

Enlarged Fe(II)-C≡N-Fe(III) bond length observed via XAFS.

Multi-level spin relaxation characterized by Mossbauer spectroscopy.

Nanostructural properties influence magnetic and chemical behavior.

Abstract

Ammonium ferric hexacyanoferrate is a veterinary-medical milestone and antidote against radiocesium, well-known as Giese-salt after the Chernobyl disaster fed to domestic and wild animals, which shows even a rich interplay of properties in nanostructural chemistry and ferromagnetism. Among the broad analytical techniques, the ambivalence of macroscopic micrometer-sized agglomerates and nanoparticle sizes, a suggested enlarged Fe(II)$-$C$\equiv$N$-$Fe(III) bond length by Fe K-edge XAFS results and multi-level spin relaxation in $^{57}$Fe M\"ossbauer spectroscopy are highlighted. This sets this underestimated compound in a new light, e.g., for modern biomedicine and biofunctionality, extending its essential importance in addition to hypothetical future nuclear incidents