// Workers AI · dad joke modeWhat did Thallium(III) oxide say? "I'm a compound interest.

Thallium(III) oxide
	Thallium(III) oxide
Names
	Other names thallium trioxide, thallium sesquioxide
Identifiers
CAS Number	1314-32-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	7979876 ;
ECHA InfoCard	100.013.846
EC Number	215-229-3;
PubChem CID	9804116;
UNII	8C7MZ48UJ1 ;
CompTox Dashboard (EPA)	DTXSID1024330 ;
	InChI InChI=1S/3O.2Tl/q3-2;2+3 Key: LPHBARMWKLYWRA-UHFFFAOYSA-N ;
	SMILES [O-2].[O-2].[O-2].[Tl+3].[Tl+3];
Properties
Chemical formula	Tl2O3
Molar mass	456.76 g/mol
Appearance	dark brown solid
Density	10.19 g/cm3, solid (22 °C)
Melting point	717 °C (1,323 °F; 990 K)
Boiling point	875 °C (1,607 °F; 1,148 K) (decomposes)
Solubility in water	insoluble
Magnetic susceptibility (χ)	+76.0·10−6 cm3/mol
Structure
Crystal structure	Cubic, (Bixbyite) cI80
Space group	Ia3 (No. 206)
Hazards
	GHS labelling:
Pictograms	‹ The template below (GHS skull and crossbones) is being considered for merging with GHS pictogram. See templates for discussion to help reach a consensus. › ‹ The template below (GHS health hazard) is being considered for merging with GHS pictogram. See templates for discussion to help reach a consensus. › ‹ The template below (GHS environment) is being considered for merging with GHS pictogram. See templates for discussion to help reach a consensus. ›
Signal word	Danger
Hazard statements	H300+H330, H373, H411
Precautionary statements	P273, P301+P310+P330, P304+P340+P310, P314
NFPA 704 (fire diamond)	4 0 0 OX
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	44 mg/kg (oral, rat)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Thallium(III) oxide, also known as thallic oxide, is a chemical compound of thallium and oxygen. It occurs in nature as the rare mineral avicennite.^[4] Its structure is related to that of Mn₂O₃ which has a bixbyite like structure. Tl₂O₃ is metallic with high conductivity and is a degenerate n-type semiconductor which may have potential use in solar cells.^[5] A method of producing Tl₂O₃ by MOCVD is known.^[6] Any practical use of thallium(III) oxide will always have to take account of thallium's poisonous nature.^{[citation needed]}

Production

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.^[7]

References

↑ Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca Raton, Florida: CRC Press. p. B156. ISBN 0-8493-0462-8..
↑ Otto H.H.; Baltrasch R.; Brandt H.J. (1993). "Further evidence for Tl3+ in Tl-based superconductors from improved bond strength parameters involving new structural data of cubic Tl2O3". Physica C. 215 (1–2): 205. doi:10.1016/0921-4534(93)90382-Z.
↑ GHS: Sigma-Aldrich 204617
↑ https://www.handbookofmineralogy.org/pdfs/avicennite.pdf Handbook of Mineralogy
↑ 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.
↑ 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.
↑ Georg Brauer; Handbuch der präparativen anorganischen Chemie, Band 2, S.884; ISBN 3-432-87813-3 (in German)

[1] Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca Raton, Florida: CRC Press. p. B156. ISBN 0-8493-0462-8..

[struct-2] Otto H.H.; Baltrasch R.; Brandt H.J. (1993). "Further evidence for Tl3+ in Tl-based superconductors from improved bond strength parameters involving new structural data of cubic Tl2O3". Physica C. 215 (1–2): 205. doi:10.1016/0921-4534(93)90382-Z.

[3] GHS: Sigma-Aldrich 204617

[4] ttps://www.handbookofmineralogy.org/pdfs/avicennite.pdf Handbook of Mineralogy

[5] 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.

[6] 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.

[brauer-7] Georg Brauer; Handbuch der präparativen anorganischen Chemie, Band 2, S.884; ISBN 3-432-87813-3 (in German)

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// Workers AI · dad joke modeWhat did Thallium(III) oxide say? "I'm a compound interest.

Production

References