稀土類中 토리움의 分離定量에 關하여 (第二報) 세바신酸에 依한 토리움의 分離定量

Th-determination in Rate Earth Part II Th-determination by the Sebacic Acid Method

  • Choi, Han-Suk (Inorganic Chemistry Section Central Research Laboratory) ;
  • Park, Sun-Ja (Inorganic Chemistry Section Central Research Laboratory)
  • 발행 : 19571100

초록

Th-determination by the sebacic acid method was compared with the hydrogen peroxide method. The former is a little more complicated than the latter in the operation and at the same time it requires careful pH adjustment, but the time needed for determination could be decreased greatly by the former. As a result of the comparison between both methods we confirmed that, within ${\pm}$0.08 ${\%}$ of error, when $ThO_2$ was contained $5{\%}$ in the sample, we could use the sebacic acid method with an half time of that required for the hydrogen peroxide method. Thorium in Monazite sand was also determined by both methods and compared. In the case we found, too, that if we permitted the maximum error of ${\pm}$0.08 ${\%}$, we could prefer the sebacic acid method.

키워드

참고문헌

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