摘要
三羟基氯化铜有三个常见的异构体,氯铜矿、斜氯铜矿和副氯铜矿。氯铜矿是敦煌壁画中常用的颜料,斜氯铜矿因为不如氯铜矿稳定而很少见。从取自敦煌石窟彩塑中的一个50μm大小的颜料样品中,经过实体显微镜下的预处理,利用微衍射分析发现斜氯铜矿被用作了壁画颜料。在敦煌壁画中斜氯铜矿的历史最早甚至可以追溯到唐代。
The copper trihydroxychloride has three isomers, namely atacamite, botallackite and paratacamite. Atacamite is a well-known green pigment used in wall paintings at Dunhuang Grottoes, but botallackite is a rare pigment because of its low stability. After being pretreated with Stereo Microscopy, pure botallackite pigment has been found for the first time through a microanalysis of X-ray diffraction in a 50 μm size of painted sculpture sample at Dunhuang Grottoes. Based on this fact, the pigment's earliest history could even be traced back to as early as the Tang Dynasty (618～907 AD).
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第5期52-55,共4页
Journal of Lanzhou University(Natural Sciences)
基金
SupportedbyNationalNaturalScienceFoundationofChina(20275014).
关键词
微衍射
颜料分析
斜氯铜矿
氯铜矿
micro diffraction
pigment analysis
botallackite
atacamite
