摘要
氯化氢被氢氧化钠吸收后,在中性条件下,以铬酸钾为指示剂,用硝酸银标准溶液滴定,生成氯化银沉淀,过量的银离子与铬酸钾指示剂反应生成浅砖红色铬酸银沉淀,指示滴定终点。
Hydrogen chloride is absorbed by sodium hydroxide and titrated with silver nitrate standard solution under neutral conditions to titrate with a silver nitrate standard solution to produce a silver chloride precipitate.Excess silver ion reacts with potassium chromate indicator to form a light The brick red silver chromate precipitate indicates the end of the titration.
出处
《化工设计通讯》
CAS
2018年第9期66-66,共1页
Chemical Engineering Design Communications
关键词
容量法
氯化氢
方法验证
volumetric method
hydrogen chloride
method validation
