期刊论文

Improvement on the Preparation Method of Chromium Acetate（Ⅱ） for Undergraduate Inorganic Chemistry Experiment

中文

广东化工

1007-1865

2016

43

1

162-163

10.3969/j.issn.1007-1865.2016.01.080

:湖南省重点学科基金 (湘教通[2013]223号(序号341)):湖南省普通高校教学改革研究立项项目

本校为第一机构

醋酸铬（Ⅱ）水合物易被氧化需要在无氧条件下制备,实验操作麻烦;同时由于铬的毒性较大,也存在严重的环境污染问题。文章基于绿色化学原则,对大学无机化学实验"醋酸铬（Ⅱ）水合物的制备"相关的实验装置和药品用量进行了改进和创新,节省了反应物的用量,缩短了反应时间,提高了产品的产率和纯度,同时也达到了环保的效果。

Since chromium（II） acetate hydrate is readily to be oxidized by oxygen, its preparation requires an anoxic atmosphere and is often difficult to operate. Besides, chromium pollution is a serious environmental problem due to its great toxicity. In the paper, the experimental installation and reagent dosage for the preparation of chromium acetate（II） as an undergraduate inorganic chemistry experiment were improved based on the principle of green chemistry. Thereby, the amount of the reactants was saved, the reaction time was shortened, the yield of product was increa...