The Hydrolysis of Di-Isopropyl Methylphosphonate in Ground Water

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Di-isopropyl methylphosphonate (DIMP) is a byproduct from the manufacture of the nerve agent Sarin. The persistence of DIMP in the ground water is an important question in evaluating the potential environmental impacts of DIMP contamination. The half-life of DIMP in ground water at 10 deg C was estimated to be 500 years with a 95% confidence interval of 447 to 559 years from measurements of the hydrolysis rates at temperatures between 70 to 98 deg C.Extrapolation of the kinetics to 10 deg C used the Arrhenius equation, and calculation of the half-life assumed first-order kinetics. Inorganic phosphate was not detected.

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11 p.

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Sega, G.A., Tomkins, B.A., Griest, W.H., Bayne, C.K. December 31, 1997.

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Description

Di-isopropyl methylphosphonate (DIMP) is a byproduct from the manufacture of the nerve agent Sarin. The persistence of DIMP in the ground water is an important question in evaluating the potential environmental impacts of DIMP contamination. The half-life of DIMP in ground water at 10 deg C was estimated to be 500 years with a 95% confidence interval of 447 to 559 years from measurements of the hydrolysis rates at temperatures between 70 to 98 deg C.Extrapolation of the kinetics to 10 deg C used the Arrhenius equation, and calculation of the half-life assumed first-order kinetics. Inorganic phosphate was not detected.

Physical Description

11 p.

Notes

OSTI as DE98000696

Source

  • 1997 U.S. Army Edgewood Research, Development and Engineering Center scientific conference on chemical and biological defense research, Aberdeen Proving Ground, MD (United States), 18-21 Nov 1997; Other Information: DN: [540 409900]

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  • Other: DE98000696
  • Report No.: ORNL/CP--94828
  • Report No.: CONF-971163--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 655259
  • Archival Resource Key: ark:/67531/metadc712304

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Office of Scientific & Technical Information Technical Reports

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  • December 31, 1997

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 19, 2016, 3:40 p.m.

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Sega, G.A., Tomkins, B.A., Griest, W.H., Bayne, C.K. The Hydrolysis of Di-Isopropyl Methylphosphonate in Ground Water, article, December 31, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc712304/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.