Transformation of unsymmetrical dimethylhydrazine in soils


The transformation of unsymmetrical dimethylhydrazine (UDMH, a propellant component) applied at a rate of 240 g/kg to different soils was studied. The kinetic regularities of a decrease in the UDMH concentration and the accumulation of its transformation products leached out from dry and wet soils were investigated 3, 10, 30, and 90 days after its application. As the UDMH enters the soil, it vaporizes, and the elevated moisture of the soils promotes an increase in the pollutant’s concentration at the initial moment; then, the concentration differences become leveled to the end of observation. It was also shown that the higher the organic matter content in the soil, the higher the UDMH concentration. However, at the end of the observations, on the 90th day, the total UDMH concentration did not exceed 0.5% of its initial content. In order to explain the UDMH behavior in the soils, one should take into account the existence of different forms of this substance and the changes in their ratios with time. The main portion of UDMH retained by the soil in the free form is transformed during the first few days. The products of the UDMH transformation, such as 1-methyl-1,2,4-triazole, formic acid dimethylhydrazide, dimethylguanidine, and dimethylamine are formed in considerable amounts, and their concentrations should be controlled in places of UDMH spills on soils.

This is a preview of subscription content, access via your institution.


  1. 1.

    V. V. Adushkin, S. I. Kozlov, and A. V. Petrov (Eds.), Ecological Problems and Environmental Risks of Spacecrafts (Ankil, Moscow, 2000) [in Russian].

    Google Scholar 

  2. 2.

    Hygienic Norm Maximum Permissible Concentration (MPC) of 1,1-Dimethylhydrazine in Soil (Approved by the Chief Sanitary Inspector of the Russian Federation on Sept. 3, 2010, No. 112) [in Russian].

  3. 3.

    N. S. Kasimov, P. P. Krechetov, and T. V. Koroleva, “Experimental Study of the Behavior of Rocket Fuel in Soils,” Dokl. Akad. Nauk 408(5), 668–670 (2006). [Dokl. Earth Sci. 409 (5), 744–746 (2006)].

    Google Scholar 

  4. 4.

    P. P. Krechetov, T. V. Koroleva, O. V. Chernitsova, and V. V. Neronov, “Rocket Launching as a Source of Environmental Impacts,” Probl. region. ekolog., No. 6, 47–58 (2008).

  5. 5.

    PM No. 98-08. Procedure for Measuring Free Water-Soluble Form of 1,1-Dimethylhydrazine in Soil by Ion Chromatography with Amperometric Detection (Chemical Faculty, Lomonosov Moscow State Univ., Moscow, 2008) [in Russian].

  6. 6.

    PM No. 81-05. Procedure for Measuring Total Dimethylhydrazine in Soil by Ion Chromatography with an Amperometric Detection (Chemical Faculty, Lomonosov Moscow State Univ., Moscow, 2005) [in Russian].

  7. 7.

    I. A. Rodin, D. N. Moskvin, A. D. Smolenkov, and O. A. Shpigun, “Transformation of Asymmetric Dimethylhydrazine in Soils,” Zh. Fiz. Khim. 82(6), 1039–1044 (2008) [Rus. J. Phys. Chem. 82 (6), 911–915 (2008)].

    Google Scholar 

  8. 8.

    R. T. Beltrami and E. R. Bisell, “Some Methylhydrazonium Salts. An Improved Synthesis of Tetramethylhydrazine,” J. Am. Chem. Soc. 78, 2467–2468 (1956).

    Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to A. D. Smolenkov.

Additional information

Original Russian Text © I.A. Rodin, R.S. Smirnov, A.D. Smolenkov, P.P. Krechetov, O.A. Shpigun, 2012, published in Pochvovedenie, 2012, No. 4, pp. 439–444.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Rodin, I.A., Smirnov, R.S., Smolenkov, A.D. et al. Transformation of unsymmetrical dimethylhydrazine in soils. Eurasian Soil Sc. 45, 386–391 (2012).

Download citation


  • EURASIAN Soil Science
  • Transformation Product
  • Soddy Podzolic Soil
  • Maximum Permissible Concentration
  • High Performance Liquid Chro