Isotope effects of rubidium in amalgam/aqueous solution systems

Abstract

The isotope separation factor, α, for rubidium isotopes in the rubidium amalgam/aqueous rubidium hydroxide system has been investigated as a function of temperature by both single-stage and multi-stage methods. At 293 K the single-stage separation factor for ⁸⁷Rb–⁸⁵Rb was found to be 1.000 70 ± 0.000 06 by multi-stage experiments. The exothermic enthalpy of the isotope-exchange reaction was also estimated thermodynamically.