九连墩楚墓青铜器锈蚀产物的拉曼光谱分析

Raman Spectrometric Analysis of Corrosion Products from Ancient Bronzes Excavated from Jiuliandun Tombs

摘要: 利用拉曼光谱对几件九连墩楚墓出土青铜器的腐蚀产物进行了测试。结果表明,九连墩楚墓出土的青铜器上主要的锈蚀产物为孔雀石CuCO_3·Cu(OH)_2,存在部分蓝铜矿2CuCO_3·Cu(OH)_2和少许副氯铜矿Cu_2(OH)_3Cl;此批青铜器锈蚀情况比较复杂,锈蚀种类比较丰富。在此基础上,探讨了科学保护此批青铜器的方法。

Abstract: Raman microspectrometry was used to identify the corrosion products from ancient bronzes excavated from Jiuliandun tombs. The results indicate that malachite \CuCO3·Cu(OH)2\ is the main substance of green corrosion product; azurite \2CuCO3·Cu(OH)2\ is the main substance of blue corrosion product and paratacamite \Cu2(OH)3Cl\ is the main substance of slightly green corrosion product. Based on the analytical results, the scientific methods for protection of the ancient bronzes are proposed.