Investigation on oxidation states of rhenium in Re-HEDP  

作　　者：WANG Wen-Jin, LUO Shun-Zhong, QIAO Jian, LIU Guo-Ping, LIU Ye-Bing (Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900) 

出　　处：《Nuclear Science and Techniques》2003年第3期174-177,共4页核技术（英文）

基　　金：Supported by the National Natural Science Foundation of China(29971027)

摘　　要：The oxidation states of rhenium in Re-HEDP (hydroxyethylidene diphosphonate) were measured bythe methods of extraction and potentiometric titration. The oxidation state of rhenium in Re-HEDP was mostly +4valence, and the Re(Ⅳ)-HEDP was oxidized to Re( Ⅴ)-HEDP when it was titrated by I3- at pH 2.0. In the reductionsystem of Vc+Sn2+ , ReO4- was only reduced by Sn2+, but Vc was oxidized earlier than Sn2+ when it was titrated by I3.The oxidation states of rhenium in Re-HEDP (hydroxyethylidene diphosphonate) were measured by the methods of extraction and potentiometric titration. The oxidation state of rhenium in Re-HEDP was mostly +4 valence, and the Re(IV)-HEDP was oxidized to Re( V)-HEDP when it was titrated by 1, at pH 2.0. In the reduction system of Vc+Sn2+, ReO4- was only reduced by Sn2+, but Vc was oxidized earlier than Sn2+ when it was titrated by

关 键 词：铼 电势滴定 氧化态 化合价 锡 放射性同位素 肿瘤治疗 

分 类 号：O614.4[理学—无机化学]