Movatterモバイル変換

[0]ホーム
URL:

Jump to content
WikipediaThe Free Encyclopedia
Search

Thorium triiodide

From Wikipedia, the free encyclopedia
Thorium triiodide
Identifiers
3D model (JSmol)
  • InChI=1S/3HI.Th/h3*1H;/q;;;+3/p-3
    Key: DSHBAXKNFMWFAR-UHFFFAOYSA-K
  • [Th+3].[I-].[I-].[I-]
Properties
I3Th
Molar mass612.7511 g·mol−1
Appearancecrystals
reacts with water
Related compounds
Related compounds
Americium triiodide
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Thorium triiodide is a binaryinorganic compound ofthorium metal andiodine with the chemical formulaThI3.[1][2][3]

Synthesis

[edit]

Th metal is heated withThI4 in a vacuum at 800 °C.[4]

Th + 3ThI4 → 4ThI3

Physical properties

[edit]

Thorium triiodide is a black, violet-tinged, usually poorly crystallized mass. Formed crystals exhibit strongdichroism from violet to olive green under the microscope and arebirefringent.[5] Above 550 °C, thorium(III) iodide decomposes to thorium(IV) iodide and thorium(II) iodide.β-thorium(III) iodide has anorthorhombic crystal structure with the space groupCccm (space group no. 66).[6] Theα-form has a pseudoorthorhombic crystal structure.

Chemical properties

[edit]

ThI3 reacts with water to form thorium tetraiodide and thorium metal.[4]

References

[edit]
  1. ^Yaws, Carl L. (6 January 2015).The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics.Gulf Professional Publishing. p. 802.ISBN 978-0-12-801146-1. Retrieved3 April 2024.
  2. ^Brown, David; Canterford, J. H.; Colton, Ray (1968).Halides of the Transition Elements: Halides of the lanthanides and actinides, by D. Brown.Wiley. p. 229.ISBN 978-0-470-10840-6. Retrieved3 April 2024.
  3. ^Seaborg, Glenn T. (20 May 1994).Modern Alchemy: Selected Papers Of Glenn T Seaborg. World Scientific. p. 21.ISBN 978-981-4502-99-3. Retrieved3 April 2024.
  4. ^abDavid, Lore Rose (1953).Thorium: A Bibliography of Unclassified Literature. Technical Information Service. p. 18. Retrieved3 April 2024.
  5. ^Brauer, Georg (1975).Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume 1. Stuttgart: Ferdinand Enke. p. 1142.ISBN 978-3-432-02328-1. Retrieved19 June 2025.
  6. ^Morss, Lester R.; Edelstein, Norman M.; Fuger, J. (2006). Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean (eds.).The Chemistry of the Actinide and Transactinide Elements. Springer. p. 78.doi:10.1007/1-4020-3598-5.ISBN 978-94-007-0211-0. Retrieved19 June 2025.
Th(II)
Th(III)
Th(IV)
Salts and covalent derivatives of theiodide ion
Retrieved from "https://en.wikipedia.org/w/index.php?title=Thorium_triiodide&oldid=1301545993"
Categories:
Hidden categories:
[8]ページ先頭
©2009-2025 Movatter.jp