DEUTERIUM HYDRIDE

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H220：극인화성 가스

  H280：고압가스; 가열시 폭발할 수 있음

• 예방조치문구

  P210：열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.

  P377：누출성 가스 화재 시 : 누출을 안전하게 막을 수 없다면, 불을 끄려하지 마시오.

  P381：누출의 경우, 모든 점화원을 제거하시오.

  P410+P403：직사광선을 피하고 환기가 잘 되는 곳에 보관하시오.

DEUTERIUM HYDRIDE 화학적 특성, 용도, 생산

• 화학적 성질

  col gas [CRC10]Density, g/L: 0.123 [CRC10]

• Synthesis

  About 150 ml. of n-butyl ether, dried over Na, is distilled into the reaction flask and 5.75 g. of LiAlH4 (40% excess) is then added under a nitrogen blanket. The mixture is frozen with liquid N s. The apparatus is then evacuated, and the flask contents are brought to boiling by careful heating. After 1.5 hours, it is again cooled with liquid Ns , the evacuation is repeated, and 5 ml. of 99.5% D2O is added to the solidified mixture, using a hypodermic syringe to pierce the rubber cap. Because of the low reaction temperature, the flask becomes coated with ice on the outside. By repeated immersion in liquid N3, the temperature is controlled so that the ice on the outer wall of the flask does not melt. As soon as the reaction subsides somewhat, two additional portions of 6.5 ml. of DSO each are added (for a total of 18 ml. or 150% excess). The yield is 10 liters of HD. The purity is 97-99%.
  LiAlH₄ + 4D₂O = LiOD + Al(OD)₃ + 4HD
  

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