湖北省鄂州出土黄铜钱币的光谱分析  

Spectral Analysis of Some Brass Coins Excavsted from Ezhou of Hubei Province

作　　者：夏冬青[1] 秦颍[1] 金普军[2] 毛振伟[1] 董亚巍 

机构地区：[1]中国科学技术大学科技考古实验室,安徽合肥230026 [2]陕西师范大学化学系,陕西西安710062 [3]湖北省鄂州市博物馆,湖北鄂州436001

出　　处：《光谱学与光谱分析》2009年第10期2867-2870,共4页Spectroscopy and Spectral Analysis

基　　金：中国科学院知识创新工程项目(KJCX3.SYW.N12)资助

摘　　要：利用X射线衍射(XRD)、X射线荧光(XRF)等手段,对湖北鄂州博物馆馆藏的当地出土的几枚锈蚀较明显的清代黄铜钱币进行了检测分析,钱币本体含Zn量36.53%～37.75%,含Cu量54.12%～59.04%,含Pb量3.51%～7.56%,合金配比稳定科学,显示清朝中后期黄铜合金技术已经相当成熟。腐蚀产物中首次发现了绿铜锌矿(Zn3Cu2(OH)6(CO3)2),此外还有黑铜矿(CuO)、红锌矿(ZnO)、铜盐(CuCl)等,当地埋葬环境中较高的Cl-含量(包括环境的污染)可能是致使这批黄铜钱币腐蚀较严重的主要原由。为钱币的收藏和保护提供了一定的参考意义。XRD and XRF were used to identify several brass coins of Qing dynasty collected in the Ezhou Museum and excavated from Ezhou of Hubei province. The reality of the coins contains 36. 53%-37.75% of Zn, 54. 12%-59. 04% of Cu and 3. 51%- 7. 56% of Pb, and the ration of the alloy is steady and scientific, indicating that the technic of the alloy of brass was quite perfect in the mid to late of Qing dynasty. Zn3Cu2 （OH）6 （CO3）2 was found in the corrosion for the first time, and CuO, ZnO, Fe2O3 and CuCI were found too. The high content of Cl^-, around the local condition （including the polluted environment）, may be the main reason for those brass coins to be eroded seriously. These findings provide some reference for collecting and protecting coins.

关 键 词：黄铜钱币 腐蚀产物 绿铜锌矿 

分 类 号：TG172[金属学及工艺—金属表面处理]