摘要
Fe（OH）3胶体的制备是中学重要的课堂演示实验，由于实验过程需要加热而耗时较长。从理论与实验的角度证实了使用MgO可促进Fe^3＋水解形成Fe（OH）3胶体。该方法在常温下即可进行，无需加热，实验成功率高及实验现象明显，符合绿色化学理念，非常适合课堂演示实验与学生自主实验。
This paper confirmed that magnesium oxide could promote hydrolysis of Fe^3＋ to form ferric hydroxide colloid from the perspective of theory and experiment. The improved experiment could be carried out at room temperature without heating, had high success rate and obvious phenomena. It was very suitable for classroom demonstration experiment and students＇ independent experiment.
出处
《化学教育》
CAS
北大核心
2016年第17期66-68,共3页
Chinese Journal of Chemical Education
关键词
氢氧化铁
氧化镁
胶体制备
实验设计
ferric hydroxide
magnesium oxide
preparation of colloids
experiment design
