总溴含量的测定方法  

Determination of total bromine content

作　　者：胡建军 HU Jian-jun(Shaoxing Hanqing Environmental Protection Technology Co.,Ltd.Shaoxing 312300,China)

机构地区：[1]绍兴汉青环保科技有限公司,浙江绍兴312300

出　　处：《聚酯工业》2020年第3期46-47,共2页Polyester Industry

摘　　要：研究了PTA行业中总溴含量的测定方法,通过Na2S2O8-NaOH体系对样品进行消解后,用抗坏血酸还原高价态无机溴,而后通过电位滴定法滴定消解产物中的溴离子来测定样品中的总溴含量。通过一些标准样品的测试和某PTA生产厂家的残渣浆料的验证,均有很高的符合度,认为该方法可以用于PTA行业中的总溴含量测定。The determination method of Total Bromine Content in PTA industry was studied.After the sample was digested by Na2S2O8 NaOH system,the high valence inorganic bromine was reduced by ascorbic acid,and then the total bromine content in the sample was determined by potentiometric titration of bromine ion in the digestion product.Through the test of some standard samples and the verification of PTA manufacturer's residue slurry,it has a high degree of compliance.It is considered that this method can be used for the determination of Total Bromine Content in PTA industry.

关 键 词：PTA 总溴含量 对苯二甲酸 消解 电位滴定法 

分 类 号：TQ245.12[化学工程—有机化工]