铝锰镁合金中镁和硅的快速分析  

Fast Analysis of Magnesium and Silicon in Aluminium-manganese-magnesium Alloy

作　　者：马芳[1] 王金洪[2] 魏新晖 崔明芳 

机构地区：[1]莱芜钢铁集团有限公司品质保证部 [2]莱芜钢铁集团有限公司技术资源部 [3]山东鲁丽钢铁有限公司

出　　处：《莱钢科技》2008年第4期63-64,共2页Laigang Science & Technology

摘　　要：试样以碱性熔剂熔融,经稀盐酸酸化浸取、定容后,移取部分试液加酒石酸钾钠,三乙醇胺,铜试剂等掩蔽剂联合掩蔽铁、铝、锰及重金属等干扰元素后,用氨水调节pH10,以酸性铬蓝K—萘酚绿B为指示剂,用EDTA标准溶液滴定镁量,取得了较好的效果。用硅钼蓝光度法测定硅,分析硅结果也令人满意。After the sample was molten with alkalic flux, acidified, leached and constant-volumed, part of test solution was taken, to which masking agents such as sodium-potassium tartrate, triethanolamine and copper reagent to adjust pH at 10 ,with acidic chrome blueness K-naphthol green B as indicators ,EDTA standard solution was used to titrate magnesium content, showing good result. The silicon-molybdenum blueness photometric method for the determination of silicon also brought about satisfactory result.

关 键 词：铝锰镁合金 碱性熔剂熔融 盐酸酸化 三乙醇胺 铜试剂 EDTA滴定法 硅钼蓝光度法 

分 类 号：TQ172.66[化学工程—水泥工业] O613.72[化学工程—硅酸盐工业]