Abstract
Commercial explosives utilize inorganic salts as an inexpensive and effective oxidizing agent. Important performance criteria of commercial explosives are gathered from the analysis of these salts in the formulation. An optimum ratio of inorganic salts to fuel oil needs to be maintained to produce complete combustion and maximum energy. This information is quickly and accurately provided by an ion chromatographic method described here. The anion analysis is performed on an hydroxyethylmethacrylate-based macroporous copolymer-based anion-exchange column, which provides good peak shapes for nitrate. Analyzing both monovalent and divalent cations in a single chromatographic step is made possible by new cation-exchangers. The dual-column method for the simultaneous determination of anions and cations was applied to the analysis of nitrate, ammonium, hexamethylenetetramine, calcium and magnesium in a single chromatographic analysis of less than 35 min. A comparison between the traditional, wet chemistry methods commonly used for commercial explosive analysis and this new ion chromatographic method is presented.
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