测定铜精矿中砷的标定溶液以Na_(2)S_(2)O_(3)替代As_(2)O_(3)的探讨  

Discussion on the Use of Na_(2)S_(2)O_(3) instead of As_(2)O_(3) in the Calibration Solution for Arsenic Determination in Copper Concentrate

作　　者：李晓娟 LI Xiao-juan(China Nonferrous Metals Group Fushun Hongtoushan Mining Co.,Ltd.,Fushun 113321,China)

机构地区：[1]中国有色集团抚顺红透山矿业有限公司,辽宁抚顺113321

出　　处：《有色矿冶》2024年第6期60-62,66,共4页Non-Ferrous Mining and Metallurgy

摘　　要：采用Na_(2)S_(2)O_(3)替代As_(2)O_(3)来标定溴酸钾标准溶液化验方法,经过实验研究,测得的化验数据稳定,均在允许差范围内。硫代硫酸钠试剂较三氧化二砷价格低,毒性小,使用领取方便,标定的方法快速简单,同时解决了三氧化二砷剧毒带来的困扰。Na_(2)S_(2)O_(3)was used instead of As_(2)O_(3)to calibrate the potassium bromate standard solution assay method.After experimental research,the measured assay data were stable and within the allowable deviation range.Sodium thiosulfate reagent is cheaper,less toxic,easier to use and obtain,and has a fast and simple calibration method compared to arsenic trioxide.It also solves the problem caused by the high toxicity of arsenic trioxide.

关 键 词：标定溴酸钾标准溶液 硫代硫酸钠 三氧化二砷 

分 类 号：O652[理学—分析化学]