我国叶蜡石的差热和红外光谱研究  

DIFFERENTIAL THERMAL ANALYSIS AND NFRARED ABSORPTION SPECTRORCOPY OF PYROPHYLLITE FROM CHINA

作　　者：陈大梅[1] 姜泽春[1] 张惠芬[1] 

机构地区：[1]中国科学院地球化学研究所,贵阳550002

出　　处：《矿物学报》1991年第1期92-96,共5页Acta Mineralogica Sinica

摘　　要：叶蜡石的吸热反应温度为600—800℃,失重量5％。叶蜡石的红外光谱有两种基本振动形式。在含石英较多的叶蜡石红外谱图中,叶蜡石的吸收谱带减弱或消失。在叶蜡石加热到1000℃后的X射线粉晶衍射谱图上,出现了莫来石和方英石的特征谱线。The endothermic reaction temperature of pyrophyllite is 600—800℃, and the weight loss is 5%. There are two basic vibration forms in the infrared spectrum of pyrophyllite. In the spectrum of pyrophyllite containing more quartz the absorption band tends to damp or vanish. After heating to 1000℃, X-ray powder diffraction will show characteristic lines due to mullite and cristobalite.

关 键 词：叶蜡石 差热分析 红外光谱 热重分析 吸热反应 莫来石 方英石 

分 类 号：P578.958[天文地球—矿物学]