Volume 4, 2020

Radiochemistry

CHEMICAL EFFECTS OF NEUTRON IRRADIATION ON ARSENIC SULFIDES

J. F. Facetti-Masulli, H. D. Colman

Pages: 106-108

DOI: 10.21175/RadProc.2020.22

The distribution of valence states III and V of radioactive 76As after neutron irradiations of thioarsenic compounds has been investigated in arsenic sulphides, optical glasses materials. Compounds were irradiated with neutrons at a flux of 1012 n cm-2 s-1 . The radioisotope formed by (n, γ) reaction is 76As with T 1/2= 26.4h. Separations of valence states were performed by electrophoresis. Radiochemical yields of As V were higher than those obtained by other workers in the irradiation of arsenic oxygenated compounds; a similar high yield of Sb V was also found previously on the irradiation of thioantimony compounds and seems to be related to the covalent character of the As-S bond; likewise, internal conversion accounts for the primary oxidation of recoil atoms.
  1. S. Radescu, A. Mujica, P. Rodríguez Hernández, A. Muñoz, J. Ibáñez, J.A. Sans, V.P. Cuenca-Gotor, F.J. Manjón, “Study of the orpiment and anorpiment phases of As2S3 under pressure”, Journal of Physics: Conference Series, vol. 950: 42018, 2017.
    DOI: 10.1088/1742-6596/950/4/042018
  2. V.P. Cuenca-Gotor, J.Á. Sans, O. Gomis, A. Mujica, S. Radescu, A. Muñoz, P. Rodríguez-Hernández, E.L. da Silva, C. Popescu, J. Ibañez, R. Vilaplana, F. J. Manjón; “Orpiment under compression: metavalent bonding at high pressure”, Physical Chemistry Chemical Physics, vol. 22, no. 6, pp. 3352-336923, Jan. 2020.
    DOI: 10.1039/c9cp06298j
  3. V.P.Cuenca-Gotor, “Estudio de compuestos As2X3 bajo presión”. Tesis doctoral dirigida F. J. Manjón, J. Á. Sans-Universitat Politécnica de Valencia, 311 pages, Jun. 2019.
  4. I. Fejes, F. Billes, V. Mitsa, “A theoretical study of the effect on the vibrational spectrum of the stepwise sulfur by selenium substitution in arsenic pentasulfide”, Journal of Molecular Structure THEOCHEM, vol. 531, pp. 407-414, Oct. 2000.
  5. H. Kobayashi, H. Kanbara, M. Koga, “Third‐order nonlinear optical properties of As2S3 chalcogenide glass”, Journal of Applied Physics, 74: 3683, 1993.
    DOI: 10.1063/1.354511
  6. M. Wuttig, V.I. Deringer, X. Gonze, C. Bichara, J.Y. Raty, “Incipient Metals: Functional Materials with a Unique Bonding Mechanism”, Advanced Materials, vol. 30, no. 51: 1803777, 2018.
    DOI: 10.1002/adma.201803777
  7. N.R. Ramakant, K. Ganesan. S. Sangunni, “Optical properties change in amorphous (As2S3)0.87Sb0.13 thin films by photo and thermal induced process”, J. Mater. Chem. Phys ., vol. 125, no. 3, pp. 505-509, 2011.
    DOI: 10.1016/j.matchemphys.2010.10.025
  8. A. G. Maddock and MM de Maine, “A search for the chemical effects of internal conversion following radiative neutron capture” Can. J. Chem, vol. 34, no. 4, pp. 441-444, 1956.
  9. J.F. Facetti-M., “Chemical effects of neutron irradiation of antimony compounds”, J. Inorg. Nucl. Chem., vol. 25, pp. 759-762, 1963.
  10. G. Baró, A. Aten, “Chemical state of arsenic formed by nuclear transformations in the oxides of germanium and selenium”, Proc. Symp. of Chem. Eff. of Nucl. Transf, IAEA, vol. 2, pp. 233-239, 1961.
  11. H. Kawahara, G. Harbottle, “Thermal annealing of recoil arsenic atoms in neutron-irradiated solid compounds of arsenic”, J. Inorg. Nucl. Chem., vol. 9, no. 3–4, pp. 240-245, 1959.
  12. V. Kacena, A.G. Maddock, “The effects of compression on the annealing behaviour of neutron irradiated potassium dihydrogen arsenate crystals”, Chemical Effects of Nuclear Transformations – IAEA Proceedings series, vol. II, pp. 255-262, 1965.
  13. J. F. Facetti-M., E. Trabal, S. Torres, “Study of annealing of antimony compounds irradiated with neutrons”, Primera Conferencia Interamericana de Radioquímica, Montevideo, pp. 234-236, 1965.
  14. J.F. Facetti-M., H. Colmán, “Chemical effects of neutron capture in thioantimony compounds”, J. Inorg. Nucl. Chem. vol. 33, pp. 419-423, 1971.
  15. J.F. Facetti-M., A. Vallejos, “Chemical consequences of thermal annealing in neutron activated thioantimony compounds” J. Inorg. Nucl. Chem. vol. 34, pp. 3659-3664, 1972.
  16. Wen Li, “Synthesis and Solubility of Arsenic Tri-sulfide and Sodium Arsenic Oxy-sulfide Complexes in Alkaline Sulfide Solutions” MSc Thesis. The University of British Columbia, Vancouver, 123 pages, Jun. 2013.
  17. R.B. Firestone, V.S. Shirley, Table of Isotopes, 8th ed. John Wiley & Sons, New York, USA, 1996.
  18. J.F. Facetti-M., H. Colman, A. Vallejos, “Separación por electroforesis de AsIII y As V en thiocompuestos de arsénico”, Rev. Soc. Cientif. Paraguay, vol. 10, pp. 21-23, 1969.
  19. A. F. Wells, Structural Inorganic Chemistry, Clarendon Press, Oxford, UK, 1984.
  20. T.T. Meek, T.J. Isaacs, “Structure of amorphous bulk As2S5”, Journal of Electronic Materials, vol. 10, no. 4, pp. 653-664, 1981.
  21. W.J. Stec, W.E. Morgan, R.G. Albridge, J.R. van Wazer, “Measured Binding Energy shifts of the “3p” and “3d” electrons in arsenic compounds”, Inorganic Chemistry, vol. 11, no. 2, pp. 216-225, 1972.
  22. R.B. Firestone, “Adopted data base and user tables” in Database of Prompt Gamma Rays from Slow Neutron Capture for Elemental Analysis , IAEA, Vienna, ch. 7, pp. 73-75 & 104-107, 2007.
  23. G. Harbottle, “Hot Atom Chemistry in inorganic solids”,Hot Atom Chemistry Status Report: Proceedings of a Panel, IAEA, Vienna, pp. 19-24, 1975.
  24. K. Tanaka, “Chemical and medium-range orders in As2S3 glass”, Physical Review B, vol. 36, no. 18, pp. 9746-9752, 1987.
  25. G. Harbottle, “Effect of nucleogenesis preceding chemical reaction: dissipation of excitation before chemical reaction”, in Chemical Effects of Nuclear Transformations in Inorganic Systems, G. Harbottle and A.G. Maddock, Eds., pp. 39-73, North Holland: Amsterdam, 1979.
  26. T.A. Carson, “Primary processes in hot atom chemistry” in Chemical Effects of Nuclear Transformations in Inorganic Systems, G. Harbottle and A.G. Maddock Eds., pp. 11-38, North Holland: Amsterdam, 1979.
  27. R.S. Nyholm, M.L. Tobe, “The stabilization of oxidation states of the transition metals in Advances” in Inorganic and Nuclear Chemistry and Radiochemistry, H. J. Emeleus and A.G. Sharpe Eds., vol. 5, p. 1, Academy Press: New York, 1963.
  28. A. Vallejos, J. F. Facetti-M., “Chemical effects of neutron irradiation on germanium thiocompounds”, Radiochim. Acta vol. 98, pp. 109-111, 2010.
    DOI: 10.1524/ract.2010.1688
J. F. Facetti-Masulli, H. D. Colman, "Chemical effects of neutron irradiation on arsenic sulfides," RAD Conf. Proc, vol. 4, 2020, pp. 106–108, http://doi.org/10.21175/RadProc.2020.22