脱硫石灰粉氧化钙含量检测方法  

Testing method for calcium oxide content of desulfurization lime powder

作　　者：花蕊 Hua Rui(Test labs,Jiangyin Xingcheng Special Steel Works Co.,Ltd,Jiangyin 214400,Jiangsu,China)

机构地区：[1]江阴兴澄特种钢铁有限公司-试验检测所,江苏江阴214400

出　　处：《特钢技术》2023年第4期46-49,共4页Special Steel Technology

摘　　要：用EDTA络合滴定法测定脱硫石灰粉中氧化钙的含量。盐酸直接溶解试样,用三乙醇胺掩蔽铁、铝、锰等离子,在强碱介质中,以钙指示剂为指示剂,用EDTA标准溶液滴定氧化钙含量。The content of calcium oxide in desulphurization lime powder was determined by EDTA complexometric titration.Hydrochloric acid dissolved the sample directly and masked iron,aluminum and manganese plasma with triethanolamine.Calcium indicator was used as indicator in strong alkali medium to titrate calcium oxide content with EDTA standard solution.

关 键 词：石灰石 掩蔽剂 氧化钙 盐酸直溶 EDTA滴定法 

分 类 号：TQ177.2[化学工程—硅酸盐工业]