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Transformation Of Hexahydro-1,3,5-Trinitro-1,3,5-Triazine (Rdx) By Permanganate, Chanat Chokejaroenrat, Steven Comfort, Clifford Harris, Daniel Snow, David Cassada, Chainarong Sakulthaew, Tunlawit Satapanajaru

Daniel D Snow

The chemical oxidant permanganate (MnO4−) has been shown to effectively transform hexa-hydro-1,3,5-trinitro-1,3,5-triazine (RDX) at both the laboratory and fieldscales. We treated RDX with MnO4− with the objective of quantifying the effects of pH and temperature on destruction kinetics and determining reaction rates. A nitrogen mass balance and the distribution of reaction products were used to provide insight into reaction mechanisms. Kinetic experiments (at pH ~7, 25 °C) verifiedthat RDX−MnO4− reaction was first-order with respect to MnO4− and initial RDX concentration (second-order rate: 4.2 × 10−5 M−1 s−1). Batch experiments showed that choice of quenching agents (MnSO4, MnCO3, and H2O2) influenced …