Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Quantitative analysis of silver in chlorinated polymer

Chlorine을 함유한 고분자 물질 중 Ag의 정량분석

  • Lim, Heon-Sung (Chemical Analysis Laboratory, Korea Research Institute of Chemical Technology) ;
  • Lee, Sueg-Geun (Chemical Analysis Laboratory, Korea Research Institute of Chemical Technology)
  • Received : 2005.07.19
  • Accepted : 2005.08.29
  • Published : 2005.10.25
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Abstract

Quantitative analysis of silver from the thermal decomposition of chlorinated polymer contained nano silver is described. The chlorine contained in the chlorinated polymer (e.g. PVC) is liberated as hydrochloric acid gas by heating and a lot of silver produces AgCl. $HNO_3$ and $NH_4OH$ were used for dissolving the Ag and the AgCl. The silver complex was formed by $NH_4OH$. Then the complex was decomposed to silver by heating at $500^{\circ}C$ and the Ag was dissolved by dilute $HNO_3$. Recovery of silver in PVC material was 99.0%.

나노 은이 첨가된 폴리염화비닐수지 등 염소화 고분자 수지내의 은(Ag)을 정량적으로 분석하였다. 염화비닐수지 등은 분해할 때 염산가스를 방출하며 이때 수지내의 은은 대부분 염화은으로 된다. 질산과 암모니아수를 사용하여 염산가스와 반응하지 않은 은과 반응하여 생성된 염화은을 은의 암모늄염으로 한 다음, 다시 열분해하여 얻은 은을 묽은 질산에 녹여 정량적으로 분석하였다. 회수율은 99.0% 이상으로 우수한 결과를 얻었다.

Keywords

References

  1. M. Machida, K. Norimoto, and T. Kimura, J. Am. Ceram. Soc., 88(1), 95(2005) https://doi.org/10.1111/j.1551-2916.2004.00006.x
  2. H. J. Lee, S. Y. Yeo, and S. H. Jeong, J. Mater. Sci., 38, 2199(2003) https://doi.org/10.1023/A:1023736416361
  3. J. Keleher, J. Bashant, N. Heldt, L. Johnson, and Y. Li, World j. microbiol. biotechnol. 18, 133(2002) https://doi.org/10.1023/A:1014455310342
  4. S. Y. Yeo, H. J. Lee, and S. H. Jeong, J. Mater. Sci., 38, 2143(2003) https://doi.org/10.1023/A:1023767828656
  5. S. Ohashi, S. Saku, and K. Yamamoto, J. Oral. Rehabil., 31, 364(2004) https://doi.org/10.1111/j.1365-2842.2004.01200.x
  6. A. J. Dole, T. J. Cardwell, R. W. Cattrall, R. Di Giacomo, C. G. Rodrigues, and G. R. Scollary, Electroanalysis., 10(1), 21(1998) https://doi.org/10.1002/(SICI)1521-4109(199801)10:1<21::AID-ELAN21>3.0.CO;2-9
  7. ASTM, The Annual Book of ASTM standards, D 3866-82, PA., U.S.A. (1985)
  8. ASTM, The Annual Book of ASTM standards, D 1278-84, PA., U.S.A. (1985)
  9. ASTM, The Annual Book of ASTM standards, D 3335-84, PA., U.S.A. (1985)
  10. ASTM, The Annual Book of ASTM standards, D 4004-82, PA., U.S.A. (1985)
  11. J. F. Liebman, Struct. Chem., 15(2), 165(2004) https://doi.org/10.1023/B:STUC.0000011251.85406.ed
  12. B. S. Fox, M. K. Beyer, and V. E. Bondybey, J. Am. Chem. Soc., 124, 13613(2001) https://doi.org/10.1021/ja0176604