期刊论文

Preparation of Pb(SCH_2 COOK)_2 and its physico-chemical properties

中文

应用化工

1671-3206

2016

45

11

2072-2075

10.16581/j.cnki.issn1671-3206.2016.11.027

14K114:湖南省教育厅高等学校创新平台开放基金 2006180:湖南省重点学科建设项目

本校为第一机构

以硝酸铅溶液和巯基乙酸溶液为原料,在碱性条件下制备一种新型水溶性铅配合物,通过溶解性实验、元素分析仪、红外光谱仪、紫外可见光谱仪、热重分析仪及电化学测试仪研究其理化性质。结果表明,该产物的分子式为Pb(SCH_2COOK)_2,在有机溶剂和酸中较难溶解,易溶于水和碱性溶液;紫外光谱图和红外光谱图表明,在配合物的结构中,中心金属铅和巯基进行配位并以很强的配位键结合,配位后产物的特征吸收波长在276 nm处。差热曲线和循环伏安曲线反映出该固体物质在常温下稳定,热分解温度约为170 ℃,配合物溶液在低浓度、室温条件下的耐氧化还原稳定性较好。实验得到了一种理化性质较稳定的铅配合物,有望为铅...

Using analytic grade lead nitrate solution and thioglycolic acid as the raw materials ,a new wa-ter-solubility lead complex was prepared under the alkalescent environment for the first time ,and its relat-ed chemical properties were studied by solubility experiment , elemental analyzer , infrared spectroscopy , UV-Vis spectrometer ,differential thermal analysis and electrochemical testor .The results showed that the product’s molecular formula was Pb(SCH2COOK)2,difficult to dissolve in organic solvent and acids ,sol-uble in water and alkaline ...