It is produced by the reaction of thallium with oxygen or hydrogen peroxide in an alkaline thallium(I) solution. Alternatively, it can be created by the oxidation of thallium(I) nitrate by chlorine in an aqueous potassium hydroxide solution.4
http://www.handbookofmineralogy.org/pdfs/avicennite.pdf Handbook of Mineralogy http://www.handbookofmineralogy.org/pdfs/avicennite.pdf ↩
Phillips R. J.; Shane M. J.; Switzer J. A. (1989). "Electrochemical and photoelectrochemical deposition of Thallium(III) Oxide thin films". Journal of Materials Research. 4 (4): 923. Bibcode:1989JMatR...4..923P. doi:10.1557/JMR.1989.0923. S2CID 96808351. /wiki/Bibcode_(identifier) ↩
D. Berry; R. T. Holm; R. L. Mowery; N. H. Turner & M. Fatemi (1991). "Thallium(III) Oxide by Organometallic Chemical Vapor Deposition". Chemistry of Materials. 3 (1): 72–77. doi:10.1021/cm00013a019. /wiki/Chemistry_of_Materials ↩
Georg Brauer; Handbuch der präparativen anorganischen Chemie, Band 2, S.884; ISBN 3-432-87813-3 (in German) /wiki/ISBN_(identifier) ↩