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%.
出处
《山东科学》
CAS
1997年第2期15-17,共3页
Shandong Science
关键词
氧瓶燃烧法
有机锑
热稳定剂
硫
络合滴定
oxygen bottle combustion
Pb(NO 3) 2
organic antimomy stabilizer
EDTA
sulfur
titration
