基于新型测试方法探究氢氧化铁胶体的部分物理性质INVESTIGATIONS OF SOME PHYSICAL PROPERTIES OF FERRIC HYDROXIDE COLLOID BASED ON NEW MEASURING METHODS
林春丹,牛振宇,李秋真,张颖,王嘉曼,张万松
摘要(Abstract):
为探究氢氧化铁胶体的折射率、黏度与表面张力系数,设计了三个实验进行相关物理量的检测。设计了基于布鲁斯特定律测量胶体折射率的实验装置并测量了氢氧化铁胶体的折射率;制作了新型毛细管法测试装置并测量了氢氧化铁胶体的黏度;并利用拉脱法测试了氢氧化铁胶体的表面张力系数。同时,为验证布鲁斯特定律测试方法的准确性,利用衍射光栅法测试样品折射率,结果表明,两种测试方法结果近似,证明了基于布鲁斯特定律的折射率测试方法是可行的。上述实验对于学生了解氢氧化铁胶体的物理性质、提高创新和探索能力具有一定的帮助。
关键词(KeyWords): 氢氧化铁胶体;折射率;布儒斯特定律;黏度;表面张力系数
基金项目(Foundation): 北京高校优质本科教材课件项目;; 中国石油大学(北京)教改项目(yjs2020020)
作者(Author): 林春丹,牛振宇,李秋真,张颖,王嘉曼,张万松
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