<研究報告>徳川斉昭の電池 : 現存する金属塩の同定分析

概要

論文の詳細を見る
There are four bottles of metal compounds in Communications Museum in Tokyo. They are thought to be derived from the end of the Edo period (before 1860) and concerning to the cells used in the case of electoplating, under the menagement of Nariaki Tokugawa who was the president of the Mito-han (the northeastern part of the Kanto area) at that time. The X-ray fluorescence analyses were carried out on the contents of the four bottles. The following elements were detected respectively; Zn, S, Cu, K, and Cl in sample 1,Cu, S, Zn, Mn, Co, K, and Cl in sample 2,Au, K, Cl, and S in sample 3,and in sample 4,Ag, K, Cl, and S. The coincidence between the contents and the kinds of metal compounds or metal solutions written on the labels has been confirmed. These results suggest that the cell kept with these four compounds is that of the Daniell-type and was practically used as an electric source. It is clear that the both solutions containing gold or silver involve the corresponding metal complexes, though the ligands can not be identified at this stage. These two metal complexes can be regarded as the oldest samples which were prepared in Japan and are in existence.
国立科学博物館の論文
1985-12-22