摘要
测定对甲苯氧基联苯桥联双苯并-15-冠-5(简称双冠L)的氯仿溶液萃取硫氰酸钾过程中对锂的同位素分离能力。确定其25℃时的εp为1.74×10^(-2)。此值比相应的苯并-15-冠-5在相同条件下的εp值(2.2×10^(-2))小。由此可见,当单环冠醚组成多元物后,它的锂同位素分离能力将下降。
The lithium isotope separation ability in extractive process of LiSCN with CHCl3 solution of p-methylphenoxy linked biscrown ether is determined. The characteristic separative ability εp is 1. 74×10-2 for this system at 25℃, and smaller than that of B15C5 under the same conditions. Thus it can be seen that the lithium isotope separation ability of monocyclic crown ether will decrease as polybasic product is formed from the monomers.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1992年第2期111-113,共3页
Journal of Nuclear and Radiochemistry
关键词
冠醚
锂同位素
液-液萃取
Crown ether,Lithium isotopes,Isotopic separative ability,Liquid-liquid extraction.
