摘要
针对无机化学综合实验三草酸合铁(Ⅲ)酸钾合成过程中存在的问题,对[K3Fe(C2O4)3].3H2O的合成条件进行探索和优化.实验结果表明:在用热水(40℃)洗涤FeC2O4,40℃时逐滴加入H2O2后煮沸30s,利用浓缩后挂棉线的方式进行结晶等条件下,得到粒度较大的翠绿色晶体,可改善实验结果的重现性、提高产品的产率和纯度.
Aiming at the previous problems, it tries to optimize conditions of the formation for Potassium tris(oxalato)ferrate(lll) trihydrate. The experimental results show that, FeC2O4 washed with hot water, when the water tempreture is 40℃, H2O2 is added into the water drop by drop, then it must be boiled for 30s. After consentration, it is crystalized and bigger viridis crystals are gotten. Meanwhile, repeatability of experimental result is improved, productivity and purity of the products are enhanced.
出处
《襄樊学院学报》
2012年第5期26-28,共3页
Journal of Xiangfan University
基金
湖北文理学院教学研究资助项目(JY201148)
关键词
三草酸合铁(Ⅲ)酸钾
实验教学
合成条件
Potassium tris(oxalato)ferrate(lll) trihydrate
Experimental teaching
Conditions of the formation