출토 철제 유물의 탈염 처리 방법 고찰

Desalting Method for Removing $Cl^-$ Ions from the Exacavated Irons Objects

  • 문환석 (국립문화재연구소 보존과학연구실) ;
  • 황진주 (국립문화재연구소 보존과학연구실) ;
  • 정영동 (국립경주문화재연구소)
  • Moon, Whan-Suk (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Hwang, Jin-Ju (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Jung, Young-Dong (National Kyongju Cultural Properties Research Institute)
  • 발행 : 1996.12.15

초록

Desalting methods for chloride ions from the excavated iron objects were studied. These methods were compared with room temperature and heating condition of treating solution. During the Desalting treatments the $Cl^-$concentration of the solution were measured regularly and the plotted for $Cl^-$concentrations the square root of time, heating methods showed that the $Cl^-$ ions are more extracted. For the desalting treatments these plots were found to be flattening line, it was showed the changing second solution. Also, the changing solution in the room temperation detected less $Cl^-$ ions of heating treatment solution. As the examination for the relative humidity has compared for desalting objects during 8 days, it was showed a re-corroded appearance of R.H90%. As it did not detected a $Cl^-$ ions of re-corroded section, these phenomena were showed the naturally occuring corrosion of the objects in the high relative humidity.

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