摘要
为探究配体与银形成不同银配合物对银镜反应的影响,以氨水、乙二胺、硫氰化钾和甲胺为配体,通过利用不同银配合物的稳定常数研究不同温度条件下银镜反应的情况,对银镜形成时间和质量做比较。结果表明,在这4种配体中,以乙二胺为配体形成的银配合物稳定常数较高,且碱性较强,室温条件下能快速形成高质量的银镜,利于课堂上开展银镜反应实验演示教学。
To explore the effect of different silver coordination compounds on silver mirror reaction,this paper used aqueous ammonia,ethylenediamine,potassium rhodanate,and methylamine as ligands,and used the stability constants of different silver coordination compounds to study the silver mirror reaction under different temperatures,compared the formation time of silver mirror and its quality.The results indicated that silver coordination compound with ethylenediamine as ligand had higher stability constant and stronger alkaline,and high quality silver mirror could form quickly at room temperature,thus it was suitable for classroom teaching of silver mirror reaction experiment.
出处
《化学教育》
CAS
北大核心
2016年第3期62-63,共2页
Chinese Journal of Chemical Education
基金
中央高校基本科研业务费专项资金资助(No.2013NT13)
关键词
银镜反应
配体
银配合物
稳定常数
乙二胺
silver mirror reaction
ligand
silver coordination compounds
stability constant
ethylenediamine
