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Detailed study of HEDTA’s chemodynamics upon gamma-radiolysis in a simulated, mixed waste

Abstract

Gamma-radiolysis of the parent compound N-(2-hydroxyethyl)ethylenediamine-triacetic acid (HEDTA) in a simulant of a Hanford mixed waste, at γ-doses of 0–7.5·106±10% R, yielded extensive degradation. Two major degradation products, glyoxylate and N-(nitroso)iminodiacetic acid (NIDA), were identified, along with lower levels of malonate and oxalate. Comparison of HEDTA’s radiolysis with that of ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA) and citrate, from earlier studies, reveals several fundamental similarities, along with marked differences. Comparatively speaking, HEDTA’s radiolysis is not particularly diverse, but it is very dispersive.

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References

  1. A. P. Toste, R. B. Lucke, T. J. Lechner-Fish, D. J. Hendren, R. B. Myers, Waste Managem., 87 (1987) 323.

    Google Scholar 

  2. A. P. Toste, T. J. Lechner-Fish, D. J. Hendren, R. D. Scheele, W. G. Richmond, J. Radioanal. Nucl. Chem., 123 (1988) 149.

    Article  CAS  Google Scholar 

  3. B. A. Tomkins, J. E. Caton Jr., G. S. Fleming, M. E. Garcia, S. H. Harmon, R. L. Schenley, L. J. Wachter, W. H. Griest, Anal. Chem., 61 (1989) 2751.

    Article  CAS  Google Scholar 

  4. A. P. Toste, T. J. Lechner-Fish, Radiat. Waste Managem. Nucl. Fuel Cycle, 12 (1989) 291.

    CAS  Google Scholar 

  5. B. A. Tomkins, J. E. Caton Jr., M. D. Edwards, M. E. Garcia, R. L. Schenley, C. A. Treese, W. H. Griest, Anal. Chem., 62 (1990) 253.

    Article  CAS  Google Scholar 

  6. A. P. Toste, B. C. Osborn, K. J. Polach, T. J. Lechner-Fish, J. Radioanal. Nucl. Chem., 194 (1995) 25.

    Article  CAS  Google Scholar 

  7. J. A. Campbell, R. W. Stromatt, M. R. Smith, D. W. Koppenaal, R. M. Bean, T. E. Jones, D. M. Strachan, H. Babad, Anal. Chem., 66 (1994) 1208.

    Article  Google Scholar 

  8. K. E. Grant, G. M. Mong, R. B. Lucke, J. A. Campbell, J. Radioanal. Nucl. Chem., 211 (1996) 383.

    Article  CAS  Google Scholar 

  9. A. P. Toste, J. Radioanal. Nucl. Chem., 161 (1992) 549.

    Article  CAS  Google Scholar 

  10. A. P. Toste, T. J. Lechner-Fish, Waste Managem., 13 (1993) 237.

    Article  CAS  Google Scholar 

  11. A. P. Toste, K. J. Polach, T. W. White, Waste Managem., 14 (1994) 27.

    Article  CAS  Google Scholar 

  12. A. P. Toste, J. Adv. Oxid. Techn., 3 (1998) 70.

    CAS  Google Scholar 

  13. A. P. Toste, J. Radioanal. Nucl. Chem., 235 (1998) 213.

    Article  CAS  Google Scholar 

  14. A. P. Toste, J. Radioanal. Nucl. Chem., 239 (1999) 433.

    Article  CAS  Google Scholar 

  15. A. P. Toste, J. Radioanal. Nucl. Chem., 249 (2001) 283.

    Article  CAS  Google Scholar 

  16. A. P. Toste, K. J. Polach, T. Ohnuki, J. Radioanal. Nucl. Chem., 263 (2005) 559.

    Article  CAS  Google Scholar 

  17. C. H. Delegard, Identity of the HEDTA Decomposition Product in Synthetic Hanford High-level Wastes, Rockwell Hanford Operations, Hanford, WA, RHO-RE-TI-062, 1983.

    Google Scholar 

  18. P. C. Mandal, D. Bardhan, S. Sarkar, S. N. Bhattacharyya, J. Chem. Soc., Dalton Trans., 6 (1991) 1457.

    Article  Google Scholar 

  19. S. N. Bhattacharyya, K. P. Kurdu, Intern. Radiat. Phys. Chem., 4 (1972) 31.

    Article  CAS  Google Scholar 

  20. A. E. Martell, R. J. Motekartes, A. R. Fried, J. S. Wilson, D. T. Macmillan, Can. J. Chem., 53 (1975) 3471.

    Article  CAS  Google Scholar 

  21. J. A. Campbell, S. A. Clauss, K. E. Grant, V. Hoopes, B. D. Lerner, R. B. Lucke, G. M. Mong, J. Rau, R. Steele, Flammable Gas Safety Program, Analytical Methods Development: FY 1994 Progress Report, Pacific Northwest Laboratory, Richland, WA, PNL-10127, 1994.

    Google Scholar 

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Toste, A.P., Pilot, T. Detailed study of HEDTA’s chemodynamics upon gamma-radiolysis in a simulated, mixed waste. J Radioanal Nucl Chem 277, 5–10 (2008). https://doi.org/10.1007/s10967-008-0701-z

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  • DOI: https://doi.org/10.1007/s10967-008-0701-z

Keywords

  • Total Organic Carbon
  • Degradation Product
  • Parent Compound
  • Glyoxylate
  • HEDTA