光度法快速测定硅、镁、稀土总量在稀土硅镁铁合金中的应用  

Fast determination of Total Content of Silicon,Magnesium and Rare Earth in Rare Earth-silicon-magnesium Ferroalloy by Photometry

作　　者：王金洪[1] 马芳[2] 梁彦平 苏文星 

机构地区：[1]莱芜钢铁集团有限公司技术资源部 [2]莱芜钢铁集团有限公司品质保证部 [3]山西海鑫钢铁有限公司

出　　处：《莱钢科技》2007年第2期53-55,共3页Laigang Science & Technology

摘　　要：试样以硝酸、氢氟酸溶解，用硼酸配位络合氟离子，稀释定容后，分别以钼蓝光度法测定硅、偶氮氯瞵Ⅰ光度法测定镁，偶氮氯瞵Ⅲ光度法测定稀土总量，提高工作效率24倍，且节约化学试剂和电能源。Samples dissolved by nitric acid and hydrofluoric acid and boric acid coordinate complex fluorin ion. After being diluted and constant-volumed, molybdenum-blue photometric method is used to determine silicon, azochlorphosphon Ⅰ photometric method to determine magnesium and azochlorphosphon Ⅲ photometric method to determine total content of rare earth ,not only lifting working efficiency 24 times,but saving chemical reagent and electricity.

关 键 词：稀土硅镁铁合金 硝酸 氢氟酸 硼酸配位 光度法 快速测定 

分 类 号：O614.33[理学—无机化学]