滴定分析法测定有机锑热稳定剂中锑的含量  

Determination of Antimony Content in the Organic Antimony Heat Stabilizer by Titration Analysis

作　　者：廖永林 刘毓林 高尔金 陈森方 Liao Yonglin;Liu Yulin;Gao Erjin;Chen Senfang(Zhejiang Himpton New Material Co.,Ltd.,Hanzhou,311113)

机构地区：[1]浙江海普顿新材料股份有限公司

出　　处：《塑料助剂》2019年第5期29-31,共3页Plastics Additives

摘　　要：本文提供了一种碘量滴定法,用于测定有机锑热稳定剂中锑的含量,相对标准偏差在1.14%~2.08%之间,回收率在96.6%~101.1%之间,方法准确可靠、简单,便于应用。This paper provides an iodometric titration method for the determination of antimony content in the organic antimony heat stabilizer.In an acid system,potassium iodide is added to achieve reduction of Sb5+to Sb3+and precipitation of iodine,and with sodium hyposulphite standard solution used in titration and starch developing agent as an indicator,the antimony content can thus be determined.This method is proved to be accurate,reliable,simple and convenient to use,with the relative standard deviation of 1.14–2.08%and the recovery rate of 96.6%~101.1%.

关 键 词：碘量滴定分析法 有机锑 锑含量 

分 类 号：TS2[轻工技术与工程—食品科学与工程]