摘要
铀除了用于军事目的外,它还是一种人工可控制的巨大核能源。因此,人们对轴在分离与制备等方面的研究一直很重视。例如,用化学法研究铀同位素的分离方法时,要求快速准确地测出铀溶液中的游离H_2SO_4浓度。但是由于铀的水解作用,不能用酸碱滴定法准确地测定出酸的浓度,加之溶液的酸度范围又不适合酸度计测定,那么寻求准确快速的测定方法就显得非常必要。
In this paper, it is suggested and discussed that condition and method of the concentration determination of free H_2SO_4 molecule in U(VI) or U(IV)H_2SO_4 solution. Taking UO_4^(2+) (or U^(4+))<0.10 mol/l and [UO_2^(2+)]/[H^+] (or [U^(4+)]/[H^+])≤1 as essential prerequisite, making [SCN^-]/[UO_2^(2+)] (or[SCN^-]/[U^(4+)])=20,[C_2O_4^(2-)]/[UO_2^(2+)] (or [C_2O_4^(2-)]/[U_^(4+)])=0.80. [F^-]/[UO_2^(2+)] (or [F^-]/[U^(4+)])=0.80,[DMF]≥60% and determination error is smaller than±1%, which is a very fast and accurate determining method.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1989年第1期73-76,共4页
Atomic Energy Science and Technology
