Thorium diiodide

In today's article we are going to address the topic of Thorium diiodide, an issue that has generated interest and debate in different areas. Thorium diiodide is a topic that is not limited to a single focus, since it can range from personal, professional, cultural, historical, social or political aspects. It is a topic that has captured the attention of many, and it is important to discuss it from different perspectives to better understand its scope and impact. Throughout this article, we will analyze different aspects related to Thorium diiodide, exploring its implications and possible solutions.

Thorium diiodide
Identifiers
3D model (JSmol)
  • InChI=1S/2HI.Th/h2*1H;/q;;+2/p-2
    Key: WASWCTHKYRRDNN-UHFFFAOYSA-L
  • ..
Properties
ThI2
Molar mass 612.75
Appearance golden metallic
Density 7.21 g/cm3[1]
Melting point 850 °C[2]
soluble
Structure
hexagonal
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Radioactive
Related compounds
Other cations
 Cerium diiodide
Praseodymium diiodide
Gadolinium diiodide
Related compounds
 Thorium triiodide
Thorium tetraiodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).

Thorium diiodide is an iodide of thorium, with the chemical formula of ThI2. It is an electride with the ionic formula Th4+(I−)2e−2. It is air-sensitive.[3]

Preparation

Thorium diiodide cn be prepared by heating thorium tetraiodide in stoichiometric amounts of thorium:[3][4]

ThI4 + Th → 2 ThI2

It can also be prepared by directly reacting thorium and iodine:[4]

Th + I2 → ThI2

Thorium diiodide can also be prepared from the decomposition of thorium triiodide at temperatures above 550 °C:[4]

2 ThI3 → ThI4 + ThI2

Properties

Like the diiodides of cerium, praseodymium and gadolinium, it has a metallic gold lustre and high electrical conductivity.[3]

References

  1. ^ Guggenberger, Lloyd J.; Jacobson, R. A. (November 1968). "Crystal structure of thorium diiodide". Inorganic Chemistry. 7 (11): 2257–2260. doi:10.1021/ic50069a017. ISSN 0020-1669.
  2. ^ Edelstein, Norman M.; Fuger, J.; Morss, Lester R. (2010). The chemistry of the actinide and transactinide elements (4th ed.). Dordrecht: Springer. ISBN 978-94-007-0211-0.
  3. ^ a b c Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1272. ISBN 978-0-08-037941-8.
  4. ^ a b c Handbuch der präparativen anorganischen Chemie. 1 (3., umgearb. Aufl ed.). Stuttgart: Enke. 1975. ISBN 978-3-432-02328-1.