Difference between revisions of "Actinium chloride"
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| Appearance = white solid | | Appearance = white solid | ||
| Density = 4.81 g cm<sup>−3</sup> | | Density = 4.81 g cm<sup>−3</sup> | ||
| − | | Solubility = | + | | Solubility = |
| MeltingPt = | | MeltingPt = | ||
| BoilingPt = 960 °C ''subl.'' | | BoilingPt = 960 °C ''subl.'' | ||
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}} | }} | ||
| Section8 = {{Chembox Related | | Section8 = {{Chembox Related | ||
| − | | OtherAnions = [[Actinium fluoride]]<br/>[[Actinium bromide]] | + | | OtherAnions = [[Actinium fluoride]]<br/>[[Actinium bromide]]<br/>[[Actinium iodide]] |
| OtherCations = [[Scandium chloride]]<br/>[[Yttrium chloride]]<br/>[[Lanthanum chloride]] | | OtherCations = [[Scandium chloride]]<br/>[[Yttrium chloride]]<br/>[[Lanthanum chloride]] | ||
| OtherCpds = [[Actinium oxochloride]] | | OtherCpds = [[Actinium oxochloride]] | ||
}} | }} | ||
}} | }} | ||
| − | '''Actinium chloride''', AcCl<sub>3</sub>, is the only known binary [[chloride]] of [[actinium]]. It has been prepared (on a 10-µg scale) by the reaction of [[actinium hydroxide]] with [[carbon tetrachloride]] at 960 °C.<ref name=" | + | '''Actinium chloride''', AcCl<sub>3</sub>, is the only known binary [[chloride]] of [[actinium]]. It has been prepared (on a 10-µg scale) by the reaction of [[actinium hydroxide]] with [[carbon tetrachloride]] at 960 °C.<ref name="Fried"/><ref name="K&M"/> |
:2Ac(OH)<sub>3</sub> + 3CCl<sub>4</sub> → 2AcCl<sub>3</sub> + 3CO<sub>2</sub> + 6HCl | :2Ac(OH)<sub>3</sub> + 3CCl<sub>4</sub> → 2AcCl<sub>3</sub> + 3CO<sub>2</sub> + 6HCl | ||
| − | It reacts with [[water]] vapour at 1000 °C to give the [[Actinium oxochloride|oxochloride]].<ref name=" | + | It reacts with [[water]] vapour at 1000 °C to give the [[Actinium oxochloride|oxochloride]].<ref name="Fried"/><ref name="K&M"/> |
==Notes and references== | ==Notes and references== | ||
Latest revision as of 11:48, 9 January 2011
| Actinium chloride | |
|---|---|
| Other names | Actinium(III) chloride Actinium trichloride |
| Identifiers | |
| Standard InChI | InChI=1S/Ac.3ClH/h;3*1H/q+3;;;/p-3 |
| Standard InChIKey | VMNJYAVXIAOMBM-UHFFFAOYSA-K |
| CAS number | [] |
| Properties[1] | |
| Chemical formula | AcCl3 |
| Molar mass | 333.39 g mol−1 [note 1] |
| Appearance | white solid |
| Density | 4.81 g cm−3 |
| Boiling point |
960 °C subl. |
| Structure[5] | |
| Crystal structure | Uranium trichloride |
| Lattice constant | a = 762(2) pm, c = 455(2) pm |
| Related compounds | |
| Other anions | Actinium fluoride Actinium bromide Actinium iodide |
| Other cations | Scandium chloride Yttrium chloride Lanthanum chloride |
| Other compounds | Actinium oxochloride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Actinium chloride, AcCl3, is the only known binary chloride of actinium. It has been prepared (on a 10-µg scale) by the reaction of actinium hydroxide with carbon tetrachloride at 960 °C.[4][5]
- 2Ac(OH)3 + 3CCl4 → 2AcCl3 + 3CO2 + 6HCl
It reacts with water vapour at 1000 °C to give the oxochloride.[4][5]
Notes and references
Notes
- ↑ The molar mass is based on actinium-227 (t½ = 21.772(3) a; Ar = 227.027 7521(26)),[2] the most commonly encountered isotope of actinium and the one used in the original chemical studies.[3][4]
References
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-73. ISBN 0-8493-0462-8.
- ↑ Audi, G.; Bersillon, O.; Blachot, J.; Wapstra, A. H. The NUBASE evaluation of nuclear and decay properties. Nucl. Phys. A 2003, 729, 3–128. doi:10.1016/j.nuclphysa.2003.11.001, <http://amdc.in2p3.fr/nubase/Nubase2003.pdf>.
- ↑ Hagemann, French The Isolation of Actinium. J. Am. Chem. Soc. 1950, 72 (2), 768–71. DOI: 10.1021/ja01158a033.
- ↑ 4.0 4.1 4.2 Fried, Sherman; Hagemann, French; Zachariasen, W. H. The Preparation and Identification of Some Pure Actinium Compounds. J. Am. Chem. Soc. 1950, 72 (2), 771–75. DOI: 10.1021/ja01158a034.
- ↑ 5.0 5.1 5.2 Kirby, H. W.; Morss, L. R. Actinium. In The Chemistry of the Actinide and Transactinide Elements, 3rd ed.; Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean, Eds.; Springer: Dordrecht, the Netherlands, 2006; Vol. 1, Chapter 2, pp 18–51. doi:10.1007/1-4020-3598-5_2, <http://radchem.nevada.edu/classes/rdch710/files/actinium.pdf>.
External links
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