Accession Number : ADA310064

Title :   Solid-State Photodecomposition of Energetic Nitramines (RDX and HMX).

Descriptive Note : Summary rept.,

Corporate Author : NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA

Personal Author(s) : Bedford, Clifford D. ; Carpenter, Pamela S. ; Nadler, Melvin P.

PDF Url : ADA310064

Report Date : MAY 1996

Pagination or Media Count : 25

Abstract : A study was undertaken to investigate the solid-state photodecomposition of the energetic nitramines RDX and HMX using direct sunlight and medium-pressure mercury lamp irradiation. The rate of RDX photolysis is faster than the rate of HMX photolysis at high concentrations (>2 wt%) and about the same for concentrations below 2 wt%. Both RDX and HMX photodecompose in KBr at an exponential rate that depends on concentration, path length, wavelength, and intensity of light. Moreover, preliminary data show that the rate may be also dependent on particle size. The only solid products characterized in the photodecomposition reactions were the inorganic salts potassium nitrate (KNO3) and potassium nitrite (KNO2), and the organic formamides such as methyl formamide and formamide. The desert environment offers a unique opportunity to exploit solar energy in an effort to reclaim explosive-contaminated lands and to remediate chemically-contaminated sludge. The preliminary results reported in this publication indicate that solid-state photodecomposition of energetic nitramines is a potentially cost effective and efficient method for remediating contaminated desert environments.

Descriptors :   *ENERGETIC PROPERTIES, *RDX, *SOLID STATE CHEMISTRY, *NITRAMINES, *PHOTODECOMPOSITION, *HMX, PARTICLE SIZE, ENVIRONMENTS, COST EFFECTIVENESS, METHYL RADICALS, PHOTOLYSIS, INTENSITY, LIGHT, EXPLOSIVES, SOLAR ENERGY, ORGANIC COMPOUNDS, SALTS, CONTAMINATION, EXPONENTIAL FUNCTIONS, DESERTS, POLLUTION, BROMIDES, CONCENTRATION(CHEMISTRY), POTASSIUM, LAND AREAS, INORGANIC COMPOUNDS, SLUDGE, POTASSIUM COMPOUNDS, NITRATES, SUNLIGHT, RECLAMATION, FORMAMIDES, NITRITES.

Subject Categories : Inorganic Chemistry
      Organic Chemistry
      Physical Chemistry
      Ammunition and Explosives
      Solid State Physics
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE