Crystallization Behavior of Hexanitrohexaazaisowurtzitane at 298 K and Quantitative Analysis of Mixtures of Its Polymorphs by FTIR

Jun-Hyung Kim; Young-Chul Park; Yoo-Jin Yim; Jeong-Sik Han

doi:10.1252/jcej.31.478

Particle Technology and Fluidization

Crystallization Behavior of Hexanitrohexaazaisowurtzitane at 298 K and Quantitative Analysis of Mixtures of Its Polymorphs by FTIR

Jun-Hyung Kim, Young-Chul Park, Yoo-Jin Yim, Jeong-Sik Han

著者情報

キーワード: Hexanitrohexaazaisowurtzitane, Crystallization, Polymorphism, Phase Transformation, Energetic Material

ジャーナル認証あり

1998 年 31 巻 3 号 p. 478-481

DOI https://doi.org/10.1252/jcej.31.478

詳細

抄録

The crystallization behavior of hexanitrohexaazaisowurtzitane (HNIW) has been investigated at 298 K. Only the β form crystallized at the initial stage of crystallization, and it converted to the ε form with a solution-mediated transformation mechanism. Through the measurement of the solubilities of each polymorph (β and ε) at 298 K, it was confirmed that the ε form is stable and the β form is metastable. In addition, an analytical method has been developed for the determination of the fraction of the ε form in the precipitates using a FTIR spectrometer.

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