分光光度法测定镀镉液中硫脲  

Measurement of the Sulfourea in the Cadmium Plating Solution by Speetrophotometry

作　　者：黄莉莉[1] 孙玉凤[1] 

机构地区：[1]沈阳理工大学,辽宁沈阳110168

出　　处：《辽宁化工》2004年第6期373-374,377,共3页Liaoning Chemical Industry

摘　　要：根据硫脲在pH值 2～ 3的乙酸介质中可被亚硝酸钠氧化生成硫氰酸和氮气 ,利用硫氰酸和三氯化铁反应生成红色硫氰酸铁配合物的性质 ,通过测定硫氰酸铁配合物的吸光度可确定硫脲的含量。Based on the reaction that sulfourea and the sodium nitrite can react to produce Thiocyanicacid and Nitrogen in the actic agent with pH 2～3. The production of Thiocyanic acid can also react with iron trichloride ,and then the red compound was produced, it can be confirmed the content of the sulfourea in the solution of cadmiun plating.

关 键 词：分光光度法 镀镉液 硫脲 

分 类 号：O657.39[理学—分析化学]