有机锑热稳定剂中硫含量的测定  

DETERMINATION OF THE SULFUR CONTENT IN ORGANIC ANTIMONY STABILIZER

作　　者：崔爱红[1] 邹本莲 魏丰华[2] 

机构地区：[1]山东省化工研究院 [2]山东省分析测试中心

出　　处：《山东科学》1997年第2期15-17,共3页Shandong Science

摘　　要：用氧瓶燃烧法分解试样，在酸性介质中用过量的硝酸铅沉淀生成的硫酸根，剩余的硝酸铅经分离后在乙酸乙酸钠介质中，用酒石酸作掩蔽剂，用ＥＤＴＡ标准溶液进行滴定。方法成功地测定了有机锑热稳定剂中硫的含量，其标准偏差为０．１％，标样回收率为９８％～１０３％。Decompose the sample with oxygen bottle combustion method. and then in acid solution, precipitate the resulted sulfuricions with excess Pb(NO 3) 2. The extra Pb(NO 3) 2 is then titrated by EDTA with masking by trataric acid. This method has been for the determination of the sulfur content in organic antimony stabilizer and statisfactory results have got. Its SD is 0.1% and recovery is 98%～103%.

关 键 词：氧瓶燃烧法 有机锑 热稳定剂 硫 络合滴定 

分 类 号：O627.522[理学—有机化学] O655.2[理学—化学]