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JOURNALS // Mendeleev Communications // Archive

Mendeleev Commun., 2026 Volume 36, Issue 1, Pages 104–106 (Mi mendc7374)

Communications

Synthesis of carbon dioxide hydrate using lithium chloride solution and its thermochemical properties

Yu. Yu. Bozhkoab, V. R. Belosludovab, N. I. Matskevichab, V. A. Knyazkovac, B. A. Klimovac, A. N. Semerikovab, N. F. Beizelab

a Novosibirsk State University, 630090 Novosibirsk, Russian Federation
b A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation
c S. S. Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation

Abstract: For the first time, carbon dioxide hydrate was synthesized from a 1% lithium chloride solution and CO2 gas under pressure; the decomposition enthalpy was measured by solution calorimetry. It was shown experimentally and computationally that addition of lithium chloride to water leads to a decrease in synthesis temperature. Lithium ions were partially incorporated into the structure of CO2 hydrate, and the remaining solution was enriched with lithium.

Keywords: carbon dioxide hydrate, lithium chloride, enthalpy, solution calorimetry, synthesis under pressure, modeling.

Received: 21.07.2025
Accepted: 20.08.2025

Language: English

DOI: 10.71267/mencom.7878



© Steklov Math. Inst. of RAS, 2025