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Oxidative Hydrolysis in Water Vapor-Air Phase of CsI Radioaerosols Produced by CsI Sublimation from Metallic Surface

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Abstract

Behavior of CsI radioaerosols produced by CsI sublimation from a platinum support in argon, air, and water vapor-air mixture was studied. During 10-12 min of the vaporization at 900-1570 K, CsI radioaerosols undergo oxidative hydrolysis with atmospheric oxygen and water vapor to form CsOH aerosols and I2. The cesium-to-iodine ratio determined in various fractions shows that oxidation of CsI in argon is minimal and is caused by the presence of oxygen and water traces. Oxidative hydrolysis of CsI strongly increases with increasing water vapor content in the vapor-gas flow. The degree of oxidative hydrolysis of CsI in the gas flow depends not only on the content of water vapor and oxygen but also on the initial CsI/O2 molar ratio.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, Moscow, Russia

    S. A. Kulyukhin, N. B. Mikheev, A. N. Kamenskaya, I. A. Rumer, N. A. Konovalova & V. L. Novichenko

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  1. S. A. Kulyukhin
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  2. N. B. Mikheev
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  3. A. N. Kamenskaya
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  4. I. A. Rumer
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  5. N. A. Konovalova
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  6. V. L. Novichenko
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Kulyukhin, S.A., Mikheev, N.B., Kamenskaya, A.N. et al. Oxidative Hydrolysis in Water Vapor-Air Phase of CsI Radioaerosols Produced by CsI Sublimation from Metallic Surface. Radiochemistry 46, 63–66 (2004). https://doi.org/10.1023/B:RACH.0000024639.33411.68

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  • DOI: https://doi.org/10.1023/B:RACH.0000024639.33411.68

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