SOLUTION CHEMISTRY OF ELEMENT-104 .1. LIQUID-LIQUID EXTRACTIONS WITH TRIISOOCTYLAMINE

Liquid-liquid extractions of element 104 (Rf), Zr, Nb, Th, and Eu were conducted using triisooctylamine (TIOA), an organic soluble high mole cular weight amine. Initial studies were conducted studying the extrac tion of Zr, Nb, Th and Eu from 12 M HCl in an organic phase of TIOA in benzene. Tracer loss due to thin sample formation was examined using Zr-95. Based on the tracer extraction results, Rf extractions were con ducted with an aqueous phase of 12 M HCl and an organic phase of 1.0 M and 0.1 M TIOA in benzene. The Rf extraction results showed that 0.1 M TIOA in benzene extracts Rf to a greater extent than 1.0 M TIOA in b enzene. This difference is attributed to Rf loss during thin sample fo rmation. The extraction of Rf by TIOA is further evidence that Rf beha ves similar to the group 4 elements.