氧瓶燃烧法测定有机颜料中氯含量  

Determination of Chlorine Content in Organic Pigments by Oxygen Flask Combustion Method

作　　者：徐再汉 陶文大 刘玲 刘春华 肖于才 XU Zaihan;TAO Wenda;LIU Ling;LIU Chunhua;XIAO Yucai(Anhui Shenlanhua Color Co.,Ltd.,Xuancheng Anhui,242000,China)

机构地区：[1]安徽申兰华色材有限公司,安徽宣城242000

出　　处：《上海染料》2022年第4期32-34,共3页Shanghai Dyestuffs

摘　　要：研究了有机颜料中氯离子的测定方法,有机颜料在氧气充足的燃烧瓶中充分燃烧分解出氯离子后,被过氧化氢及氢氧化钾吸收,以二苯卡巴腺为指示剂,经硝酸汞标准溶液滴定,终点颜色鲜明,可以准确测定其中氯元素的含量。This paper studied the determination method of chloride ions in organic pigments.The organic pigments were fully burned and decomposed in a combustion flask with sufficient oxygen to decompose chloride ions,which were absorbed by hydrogen peroxide and potassium hydroxide.The solution was titrated by the standard solution of mercury nitrate with diphenylcarbazone as an indicator.The end point of titration was bright in color and the content of chlorine element could be determined accurately.

关 键 词：氧瓶燃烧法 氯含量测定 二苯卡巴腺 硝酸汞标准滴定溶液 

分 类 号：TQ620.72[化学工程—精细化工]