Valence Stabilization of Fe(II) Ions during Extended Gamma Irradiation of Their Aqueous Acidic Solutions Containing Phenol, Acetone, 4-Ethylpyridine or Hydrazine Hydrate ()
ABSTRACT
Valence stabilization of polyvalent ions in acidic solutions during gamma
irradiation is an important issue in nuclear aqueous chemical technology.
Radiolysis and self irradiation problems encountered during chemical
reprocessing of nuclear fuel or during chemical separation of transuranium
elements or fission products are extremely important. Consequently studies on
valence stabilization of polyvalent ions in strong gamma irradiation fields are
very useful. In our previous publications, the valence stabilization of Fe(II)
ions in acidic solutions during continuous gamma irradiation was achieved by
using an inorganic compound; such as sodium sulfite, or some organic additives
such as aliphatic alcohols, aldehyds or acids prior to irradiation. It was found that the efficiency
of valence stabilization depends on the amount and chemical structure of the
added compounds. In the present work, valence stabilization of divalent iron
during gamma irradiation was studied in presence of some organic additives, belonging
to some other classes of organic compounds such as Phenol (aromatic alcohol),
Acetone (aliphatic ketone), 4-Aminopyridine (heterocyclic amino compound) and
Hydrazine hydrate (aliphatic amino compound) to complement our previous
studies. The results showed that valence stabilization of Fe(II) in presence of
these compounds depends also on the amount and chemical structure of the additive
used. Some interaction mechanisms have been proposed.
Share and Cite:
Barakat, M. and Hamid, M. (2015) Valence Stabilization of Fe(II) Ions during Extended Gamma Irradiation of Their Aqueous Acidic Solutions Containing Phenol, Acetone, 4-Ethylpyridine or Hydrazine Hydrate.
World Journal of Nuclear Science and Technology,
5, 88-101. doi:
10.4236/wjnst.2015.52008.