Volume 2, Issue 5, October 2014, Page: 85-90
Assessment of Chemical Dissolution Method for Conservation of Underwater Archaeological Ceramics
Nurul Hidayat Aprilita, Chemistry Department, Universitas Gadjah Mada, Sekip Utara Bulaksumur 21, Yogyakarta, 55281, Indonesia
Endang Tri Wahyuni, Chemistry Department, Universitas Gadjah Mada, Sekip Utara Bulaksumur 21, Yogyakarta, 55281, Indonesia
Mahirta , Archaeology Department, Universitas Gadjah Mada, Nusantara Street 1, Bulaksumur, Yogyakarta, 55281, Indonesia
Farida Yulita Putri Yuani, Chemistry Department, Universitas Gadjah Mada, Sekip Utara Bulaksumur 21, Yogyakarta, 55281, Indonesia
Raisa Deborah, Chemistry Department, Universitas Gadjah Mada, Sekip Utara Bulaksumur 21, Yogyakarta, 55281, Indonesia
Received: Oct. 15, 2014;       Accepted: Oct. 21, 2014;       Published: Oct. 30, 2014
DOI: 10.11648/j.ajac.20140205.14      View  2708      Downloads  135
Abstract
The application of chemical dissolution for removal of sediment covering ceramics of underwater archaeology has been studied. The first step of this research was analysis and identification of the content of sediment covering ceramics of underwater archaeology using IR spectrophotometer, X-Ray Diffractometer, and Atomic absorption spectrophotometer. The second step was dissolution process of the sediment using water, Na2EDTA, and H2O2 solution. In this step, the influences of dissolution time using water and various concentration of the Na2EDTA and H2O2 solution have been evaluated. The result of this research showed that the sediment covering ceramics of underwater archaeology contains of organic compound, soluble salts of Na+ and K+, and insoluble salts of Ca2+, Mg2+, and Fe3+. Increasing the dissolution time in water has considerably increased the dissolution of the Na+ and K+ salts from sediment. On the other hand, increasing of concentration Na2EDTA gives an increase in the Ca2+, Mg2+, and Fe3+ salts dissolution from the sediment. The optimum concentration of H2O2 solution for dissolving organic compound is 30%.
Keywords
Chemical, Dissolution, Conservation, Archaeological, Ceramic
To cite this article
Nurul Hidayat Aprilita, Endang Tri Wahyuni, Mahirta , Farida Yulita Putri Yuani, Raisa Deborah, Assessment of Chemical Dissolution Method for Conservation of Underwater Archaeological Ceramics, American Journal of Applied Chemistry. Vol. 2, No. 5, 2014, pp. 85-90. doi: 10.11648/j.ajac.20140205.14
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