Thermolysis of Calcium Iodate: Kinetic Parameters¹

Yu. M. Maksimov^a, A. M. Shulpekov^a^, *, A. N. Avramchik^a, and B. Sh. Braverman^a

^a Tomsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia

Correspondence to: *e-mail: shulp@yandex.ru

¹The text was submitted by the authors in English.

Received 5 November, 2020

Abstract—Thermal transformations in calcium iodate were studied by differential scanning calorimetry in the temperature range of 300–973 K. The process was found to proceed by the scheme: Ca(IO₃)₂∙H₂O → Ca(IO₃)₂ → Ca₅(IO₆)₂ + I₂ + 9O₂. Calculated kinetic parameters adequately described experiment. X-ray diffraction patterns of the intermediate products formed at 523, 723, and 873 K well agreed with the available literature data.

Keywords: thermolysis, calcium iodate, kinetic parameters

DOI: 10.3103/S1061386221010076

Thermolysis of Calcium Iodate: Kinetic Parameters1

Thermolysis of Calcium Iodate: Kinetic Parameters¹