品牌与标准化Issue(1)：14-16,3.DOI:10.3969/j.issn.1674-4977.2024.01.005
碱熔-比浊法测定铜精矿中氯离子含量
Determination of Chloride Ion Content in Copper Concentrate by Alkali Fusion-Turbidimetry Method
尹文梅 1吴瑞 1朱海燕 1刘俊 1杨晶丽1
作者信息
- 1. 广西金川有色金属有限公司检测中心,广西 防城港 538002
- 折叠
摘要
Abstract
This method involves the alkali fusion decomposition of the copper concentrate sample using sodium hydroxide.The sample is then extracted with boiling water,and after cooling and precipitation,the supernatant is taken.Excess silver nitrate solution and a stabilizer are added,and the chloride ion content is determined using the silver chloride turbidimetry method at a wavelength of 490 nm.By analyzing the dosage of nitric acid,stabilizer,stabilization time,coexisting elements in the copper concentrate,and the influence of different sample concentrations on chloride ion determination,it can be seen that this method is simple to operate.The relative standard deviation(RSD)ranges from 1.15%to 4.78%,and the recovery rate is between 96.00%and 113.39%.The precision and accuracy of the method meet the requirements for production.关键词
铜精矿/氯/碱熔-比浊法Key words
copper concentrate/chlorin/fusion-turbidimetry引用本文复制引用
尹文梅,吴瑞,朱海燕,刘俊,杨晶丽..碱熔-比浊法测定铜精矿中氯离子含量[J].品牌与标准化,2024,(1):14-16,3.
