Separation of Boron Isotopes. I. Boron Trihalide Addition Compounds

Abstract

Isotopic separation factors for several gas-liquid systems for concentrating boron isotopes have been determined. Separation factors at 25°C are: System(B10/B11) liq/(B10/B11) gasBF3(g) vs anisole·BF3 (liq.)1.032±0.011 (95% C.I.)BF3(g) vs di−n−butyl sulfide·BF3 (liq.)1.033±0.005 (95% C.I.)BF3(g) vs phenol·BF3 (liq.)1.027±0.014 (95% C.I.)Separation factors for a number of BCl3-organic systems have also been studied, and a new compound (C6H5)2O·BCl3 has been prepared and characterized.