Dinitramidic acid (DNA) and its salts are recently the most studied nitramine compounds. The present work describes the synthesis, characterization and purity determination of ammonium dinitramide (ADN) and its precursors such as guanylurea dinitramide (GUDN) and potassium dinitramide (KDN). The synthesized ADN and its precursors were characterized using ultra violet Visible, Fourier tansform-infra red (FTIR) spectroscopy and thermal techniques such as differential scanning colorimtry (DSC). The performance of ADN as an oxidizer in propellant compositions mainly depends on its purity. The presence of undesired impurities would be detrimental to its performance. Further, the overall yield of the product depends on the purity of the precursors. Hence, it becomes essential to analyze both the precursors and the final product using a suitable analytical technique prior to its application in propellant compositions. The reported method only analyzed the ion involved in ADN synthesis. In present study we have analyzed ions involved in GUDN, KDN and ADN using suitable ion chromatographic method for the direct analysis of anions and cations involved. The synthesized compounds have been subsequently characterized using atomic absorption spectrometry (AAS) to estimate their purity.
ammonium dinitramide, guanylurea dinitramide, potassium dinitramide, purity estimation, ion chromatography