The Solubility and Decomposition of Ozone in Solutions
of Sulfuric and Perchloric Acids in the Temperature Range
from 25 to -70C

Corresponding Member of the RAS B. G. Ershov and N. M. Panich

Received June 2, 2015

Abstract—The solubility of ozone (O₃) in 5 M solutions of H₂SO₄ or HClO₄ and in 18 M H₂SO₄ markedly
increases as the temperature decreases from 25 to –70C. In particular, the solubility coefficient of ozone (
_liqgas) in 5 M H₂SO₄ increases in this temperature range from 0.13 to 1.47, the heat of solubility being
13.5 kJ/mol. At low temperature, the absorption band of ozone at 588 nm ( = 4.5 L mol^–1 cm^–1) is detected. At
T –30C, ozone virtually does not decompose in acid solutions.

DOI: 10.1134/S0012501615110068

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