摘要
介绍了测定三氧化硫含量的代用法——碘量法,应用该方法测定水泥中的三氧化硫,试样先用磷酸处理,再还原吸收,用碘量法滴定,其中硫化物的干扰测定,可加热除去,其他状态的硫会给测定结果造成误差。结果表明:碘量法测定时间较短,操作简便,仪器设备简单,受干扰较小,结果较准确,具有很强的适用性。
The three generation method for the determination of sulfur oxide content-iodometric method,determination of three sulfur trioxide in cement by using this method,samples were first treated with phosphoric acid,and then restore the absorption by iodometry titration,which can interfere with the determination of sulfide,sulfur is removed by heating,other conditions will cause the error to the measurement results. The results showed that the time of iodine determination was short,the operation was simple,the equipment was simple,the interference was smaller,the result was more accurate,and it had a strong applicability.
出处
《山西建筑》
2017年第24期110-111,共2页
Shanxi Architecture
关键词
碘量法
三氧化硫
含量
iodine method
three sulfur trioxide
content
