S +1+1 +2+2 3+3+ 4+4+ 6+6+ +5+5 iron monosulfide in corrosion layers Insight from iron-clay corrosion experiments SEM-EDX analysis iron Corrosion products (clay) Micro X-ray Fluorescence spectroscopy X-ray absorption spectroscopy S (-II) S (VI) Potential impact of FeS solid on the retention properties of radionuclides by the near- field clay.
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