钡锶玻璃中氧化钡的测定  

Determination of Barium Oxide in Glass with Barium and Strontium

作　　者：康俊 王颖杰 刘逸群 李静彤 郭芮希 KANG Jun;WANG Yingjie;LIU Yiqun;LI Jingtong;GUO Ruixi(China Building Material Test&Certification group Qinhuangdao Co.,Ltd;Qinhuangdao,066004)

机构地区：[1]中国建材检验认证集团秦皇岛有限公司,秦皇岛市066004

出　　处：《玻璃》2018年第12期24-26,共3页Glass

摘　　要：介绍了一种钡锶共存的玻璃基体中氧化钡的测定方法。选用重铬酸钾为沉淀剂,将玻璃中的钡以铬酸钡的形式沉淀下来,锶在实验条件下保留在溶液中。将铬酸钡沉淀溶解于盐酸中,用硫酸亚铁铵标准溶液滴定溶出的铬酸根离子,进而根据化学反应方程式计算出试样中的钡含量。实验表明,该方法基础理论可靠,操作方便,分析结果准确度高,适合在玻璃行业推广应用。A method for determination of barium oxide in glass with barium and strontium is introduced.Using potassium dichromate as precipitator,barium in glass is precipitated in the form of barium chromate,and the strontium is retained in solution under the experimental conditions.The barium chromate precipitation can be dissolved in hydrochloric acid,and the chromate ions are titrated with ferrous ammonium sulfate standard solution,and the barium content in the sample glass is calculated according to the chemical reaction equation.The experimental results show that the method is reliable in theory,convenient in operation and high in accuracy.It is suitable for popularization and application in glass industry.

关 键 词：氧化钡 氧化锶 铬酸钡 硫酸亚铁铵 氧化还原滴定 

分 类 号：TQ171[化学工程—玻璃工业]