摘要
本文探讨了公司矿石中砷的测定。试样经硫酸、磷酸分解,以硫酸肼(硫酸联胺)将五价砷还原成三价砷,以甲基橙作为指示剂,用溴酸钾标准溶液滴定砷量方法简单、快速,结果准确可靠。且测定范围为大于0.1%砷含量的测定。
This paper discusses the determination of arsenic in the ore of the company.The sample is decomposed by sulfuric acid and phosphoric acid,and the pentavalent arsenic is reduced to trivalent arsenic by hydrazine sulfate.The method of titrating arsenic with potassium bromate standard solution with methyl orange as indicator is simple,rapid and the result is accurate and reliable,and the determination range was more than 0.1%arsenic content.
作者
杨绍辉
Yang Shaohui(Analysis and Testing Center,Yunnan Hualian Zinc&Indium Stock Co.,Ltd.,Yunnan,663701)
出处
《当代化工研究》
2021年第1期153-154,共2页
Modern Chemical Research
关键词
砷
简单
快速
准确
可靠
溴酸钾滴定法
arsenic
simple
rapid
accurate
reliable
potassium bromate titration
作者简介
杨绍辉(1982-),男,云南禄劝人,本科,工程师,云南华联锌锢股份有限公司分析测试中心,研究方向:化验检测。
