一青铜耳杯锈蚀的拉曼光谱分析

发布时间：2018-04-13 11:46

本文选题：青铜 + 磷氯铅矿　；参考：《光散射学报》2017年02期

【摘要】：利用超景深显微镜和激光共聚焦显微拉曼光谱仪,对重庆市云阳县丝栗包遗址出土的一件青铜耳杯的锈蚀产物进行分析。通过分析可知,该耳杯的锈蚀物主要有:磷氯铅矿(Pb_5(PO_4)_3Cl)、白铅矿(PbCO_3)、氧化铅(PbO)、赤铜矿(Cu_2O)、孔雀石(Cu_2CO_3(OH)_2)和蓝铜矿(Cu_3(CO_3)_2(OH)_2)。铅的腐蚀产物由内向外的分布为氧化铅、白铅矿和磷氯铅矿。据此推断锈蚀外层磷氯铅矿的形成过程可能为:铅氧化成氧化铅,之后转换成白铅矿,白铅矿在酸性、富含磷和氯的环境下转变成化学性质稳定的磷氯铅矿。
[Abstract]:The corrosion products of a bronze ear cup unearthed from Silicilla site in Yunyang County Chongqing City were analyzed by means of hyper-depth microscope and laser confocal microscopy Raman spectrometer.The corrosion products of lead from inside to out are lead oxide, white lead ore and lead phosphate chloride ore.It is inferred that the formation process of the rusty outer layer is that lead is oxidized to lead oxide, then converted to white lead, and the white lead is converted into a stable lead phosphate ore in acidic, rich in phosphorus and chlorine environment.
【作者单位】：重庆中国三峡博物馆;云阳县博物馆;
【基金】：重庆市基础与前沿研究计划项目(cstc2014jcyjA00021)
【分类号】：K876.41;O657.37

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