高锰酸钾法测定盐酸羟胺影响因素分析  

Analysis of Influencing Factors of Hydroxylamine Hydrochloride by Potassium Permanganate Method

作　　者：朱军伟 米鹏[1,2] 魏凤 姚斌[1,2] 陈琦 王文强 舒永 邢文国[1,2] 冯维春 ZHU Jun-wei;MI Peng;WEI Feng;YAO Bin;CHEN Qi;WANG Wen-qiang;SHU Yong;XING Wen-guo;FENG Wei-chun(Shandong Xingqiang Chemical Industry Technology Research Institute Co.,Ltd.,Shandong Dongying 257091;Qingdao University of Science&Technology,Chemical Technology Academy of Shandong,Shandong Jinan 250014,China)

机构地区：[1]山东兴强化工产业技术研究院有限公司,山东东营257091 [2]青岛科技大学山东化工研究院,山东济南250014

出　　处：《广州化工》2021年第5期98-100,共3页GuangZhou Chemical Industry

基　　金：泰山学者建设工程基金项目(ts20130918)。

摘　　要：本文通过研究氧化还原法测定盐酸羟胺含量的方法,对行业标准中存在的不足进行了探讨,考察了影响其测定结果的主要因素,发现:盐酸羟胺待测样品贮存条件、水中氧含量、硫酸的加入量、试样的沸腾时间、滴定前的放置时间,皆对测定结果产生较大影响,确定了硫酸的加入量为V 0.4%,试样沸腾时间(5.5±1.5)min左右,并且控制在加入磷酸后15 min内完成滴定,尝试以电位滴定法对盐酸羟胺样品进行分析,滴定结果准确性更高。By studying the method of REDOX method for the determination of hydroxylamine hydrochloride content,the deficiencies existing in the industry standards were discussed,and the main factors affecting the determination results were investigated.It was found that The storage conditions of hydroxylamine hydrochloride sample,oxygen content in water,sulfuric acid dosage,boiling time of sample and storage time before titration had great influence on the determination results.The addition amount of sulfuric acid was determined as V 0.4%,sample boiling time was about(5.5±1.5)min,and the titration was completed within 15 min after adding phosphoric acid,potentiometric titration method was used to analyze samples of hydroxylamine hydrochloride,it showed that the titration results accuracy was higher.

关 键 词：盐酸羟胺 含量 高锰酸钾法 氧化还原 

分 类 号：TQ226[化学工程—有机化工]