Effect of Molybdenum Amounts for Test of Rhenium by Catalytic-Kinetics Spectrophotometry
This article has studied the massive molybdenum existence to the micro rhenium determination influence when the latter catalyze sodium tellurate and the tin dichloride redox reaction. As it is discovered, the molybdenum (VI) has not participated in the catalytic reaction together with the rhenium, whereas it has had redox reaction with the tin dichloride, competing for the tin dichloride in the reacting system with the tellurium. As a result, it has consumed a part of reaction reagent, causing the instruction reaction of the rhenium can not carry on effectively. The experimental result indicated that we may determine the rhenium under the molybdenum existence when the amount ratio of rhenium and molybdenum is 1: 100 and the amount of 5 ％ tin dichloride is 2. 0mL, avoiding the molybdenum separation. Simultaneously this catalytic reaction condition is optimized. And Beers Law was obeyed in the range of 1 ～10 μg/10 mL, it conforms to the Bill law. The regression equation y = 0.0595C μg/10mL + 0. 1466 and the correlation coefficient R2= 0.9983. This method is applied in the rhenium detection during the separation process of molybdenum and rhenium with a satisfactory result.
Rhenium Molybdenum Catalytic-kinetics spectropbotometry
Jiang Kexu Deng Guichun Lv Daifang Zhang Jun Ju Zhengnan Ye Linlin Zhai Yuchun
School of Materials and Metallurgy, Northeastern University Yangjiazhangzi Economic Development Zone College of Chemistry, Liaoning University School of Materials and Metallurgy, Northeastern University
国际会议
沈阳
英文
230-232
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）