한국결정성장학회:학술대회논문집 (Proceedings of the Korea Association of Crystal Growth Conference)

한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

Morphology Control of NTO Crystals with Various Recrystallization Techniques

  • Lee, H.Y. (Department of Chemistry Engineering Sogang University) ;
  • K.K. Koo (Department of Chemistry Engineering Sogang University) ;
  • Kim, K.J. (Korea Research Institute of Chemistry Technology) ;
  • G.B. Lim (Department of Chemistry Engineering, The Univeristy of Suwon) ;
  • W.B. Jeong (Hanwha Corp., R & D Center) ;
  • Kim, S.H. (Hanwha Corp., R & D Center) ;
  • Kim, H.S. (Agency for Defence Development) ;
  • Park, B.S. (Agency for Defence Development)
  • 발행 : 1997.10.01
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초록

Various recrystallization techniques has been applied to control morphology and size of NTO(3-nitro-1, 2, 4-triazole-5-one) crystals. With cooling method, it was found that the size of NTO at aqueous solution was controlled in the range of 5 to 500 $\mu\textrm{m}$. The spherical or cubic shapes of particles were obtained by adjusting operating conditions. Hexagonal and cubic shaped crystals of NTO were also obtained by sonication and evaporative method using aqueous solution of NTO. Their particle sizes were ranged 20 to 30 $\mu\textrm{m}$. In gas anti-solvent method with NTO/DMF and NTO/DMSO solutions, cubic type of NTO was obtained and the range of their sizes was 0.5-2$\mu\textrm{m}$.

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