Release of ¹³⁷Cs into the Gas Phase during the Interaction of ¹³⁷Cs Compounds with Molten Lead

The release of ¹³⁷Cs into an Ar flow during the reaction of ¹³⁷CsI and ¹³⁷CsOH–¹³⁷Cs₂CO₃ with molten lead at a temperature of ~852 K was studied. It was determined that during the heating of Pb⁰ with ¹³⁷CsI, ¹³⁷CsOH–¹³⁷Cs₂CO₃, and ¹³⁷CsI–¹³⁷CsOH–¹³⁷Cs₂CO₃ from 2 to 8% of ¹³⁷Cs can pass into the gas flow. Based on the distribution of ¹³⁷Cs among the elements of the gas purification system, it was concluded that the chemical and disperse composition of the compounds containing ¹³⁷Cs in the gas phase is fairly heterogeneous. Volatile ¹³⁷Cs compounds formed on heating ¹³⁷CsI, ¹³⁷CsOH–¹³⁷Cs₂CO₃, and ¹³⁷CsI–¹³⁷CsOH–¹³⁷Cs₂CO₃ with Pb⁰ in a gas flow at ~852 K can contain both charged aerosols and aerosols without an electric charge.