Rapid destruction of stockpiles of sarin and other chemical weapon agents (CWA) requires understanding and quantitative description of the relevant chemical reactions. Rapid reactions at elevated temperatures are of particular interest for prompt agent defeat scenarios. Diisopropyl methylphosphonate (DIMP) is a sarin surrogate particularly well suited to model sarin thermal decomposition and is often used in experiments. This article is a review of different experimental methods addressing decomposition of gasified DIMP, respective results and their interpretations. Major early decomposition products are propene, methylphosphonic acid, methyl(oxo)phosphoniumolate, and isopropanol. Early computational work using available kinetic data for fluorine and the phosphorus-fluorine bond predicted the decomposition under incineration conditions. Experiments using an isothermal flow reactor operated at 700–800 K were used to model DIMP decomposition as unimolecular reaction with results that were consistent with the earlier theoretical work. Decomposition in dynamic environments was studied using DIMP supported on rapidly heated substrates. The results showed different decomposition products and product sequences forming at different heating rates, suggesting the need for revised reaction kinetics. However, species quantification in such experiments is difficult because of inherent large temperature gradients. Plasma produced in a corona discharge was also reported to lead to rapid DIMP decomposition at low temperatures. Decomposition products were distinct from those observed at high temperatures. Shock tube experiments may be well suited to study decomposition of organophosphorus compounds like DIMP following their rapid heating in diverse environments. However, presently, only sarin surrogates other than DIMP have been investigated, and no intermediate reaction products, important for developing a validated mechanism, could be detected.

快速销毁沙林和其他化学武器剂（CWA）库存需要了解和定量描述相关的化学反应。高温下的快速反应对于迅速清除试剂的情况特别重要。甲基膦酸二异丙酯（DIMP）是一种沙林蛋白替代品，特别适合用于模拟沙林蛋白热分解，并且经常用于实验中。本文是对解决气化DIMP分解的不同实验方法，各自的结果及其解释的综述。主要的早期分解产物是丙烯，甲基膦酸，（氧代）膦酸甲酯和异丙醇。早期的计算工作使用了可用的氟和磷-氟键动力学数据，预测了焚烧条件下的分解。使用在700–800 K下运行的等温流动反应器进行的实验将DIMP分解模型化为单分子反应，其结果与早期的理论工作相符。使用支持在快速加热的基材上的DIMP研究了在动态环境中的分解。结果表明，不同的分解产物和产物序列在不同的加热速率下形成，表明需要修改反应动力学。但是，由于固有的大温度梯度，在此类实验中难以对物种进行定量。据报道，在电晕放电中产生的等离子体还导致低温下DIMP迅速分解。分解产物不同于在高温下观察到的产物。冲击管实验可能非常适合研究有机磷化合物（如DIMP）在各种环境中快速加热后的分解。但是，目前仅研究了除DIMP以外的沙林蛋白替代物，并且未检测到对建立有效机制很重要的中间反应产物。