Conservation of copper objects in marine sites

해저 인양 구리 유물의 보존처리 연구

  • Moon, Whan-Suk (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Hwang, Jin-ju (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Kim, Sun-Duk (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Kang, Dai-Ill (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Jung, Ki-Jung (Conservation Science Dept. National Research Institute of Cultural Properties) ;
  • Jung, Young-Dong (National Kyongju Cultural Properties Research Institute)
  • 문환석 (국립문화재연구소 보존과학연구실) ;
  • 황진주 (국립문화재연구소 보존과학연구실) ;
  • 김선덕 (국립문화재연구소 보존과학연구실) ;
  • 강대일 (국립문화재연구소 보존과학연구실) ;
  • 정기정 (국립문화재연구소 보존과학연구실) ;
  • 정영동 (국립경주문화재연구소)
  • Published : 1995.12.15

Abstract

Several comparisons of treatment methods for stabilizing corroded Chinese coins at Shin-an marine sites were investigated. In aqueous solution, the seexamination were performed to show whether chloride ions are gradually removed, patination changes are acceptable and archaeological details are identified. The six desalting methods showed that the orders of removal of chloride ions were ranked electrolysis (electolyte : 0.1M sodium sesqui.)> 5% sodium dithionite(1M NaOH)> 5%sodium dithionite(0.1M sesqui.)> 5% citric acid> 0.1M sodium sesquicarbonate>deionized water. As the examinations of moisture absorption to the relative humidity has compared for bronze disease, all of desalted coins for the R.H 53% and R.H 75%except to R.H 95% are showed serious bronze disease.

Keywords