Einsteinium(III) bromide
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| EsBr3 | |
| Molar mass | 490.8359 g/mol |
| Appearance | Light brown crystalline solid[2] |
| Structure[3][4] | |
| Monoclinic | |
| Octahedral | |
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Other anions
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Einsteinium(III) chloride Einsteinium(III) iodide |
Related compounds
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Einsteinium(II) bromide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Einsteinium(III) bromide, or einsteinium tribromide is the binary bromide salt of einsteinium.[1] It has a monoclinic crystal structure[3][4] and is used to create einsteinium(II) bromide.[5] This compound slowly decays to californium(III) bromide.[5] via alpha decay.
Chemical Properties
Einsteinium tribromide is a light-brown crystalline solid compound of einsteinium[6] with the chemical formula .
![{\displaystyle {\mathrm {EsBr} {\vphantom {A}}_{\smash[{t}]{3}}}}](./_assets_/eb734a37dd21ce173a46342d1cc64c92/d7072ead04e0cbefb6aca9c0b793c369a94dcc69.svg)
History
Einsteinium Tribromide was first discovered with small amounts of Einsteinium from the Ivy mike test in 1952. Analysis of the fallout confirmed the presence of elements 99 and 100, which the researchers named einsteinium and fermium. Einsteinium originally received the chemical letter , which was later changed to . Apart from making einsteinium tribromide from hydrobromic acid, the researches also produced related halides like the chloride salt.
Synthesis
Einsteinium tribromide was first made with hydrobromic acid and einsteinium trioxide, with the following (balanced) equation:
- Es2O3 + 6 HBr → 2 EsBr3 + 3 H2O
Health Hazards
Einsteinium is a potent alpha emitter and can cause various cancers.[7]
References
- ^ a b "Einsteinium-253 tribromide". PubChem. 2 October 2021. Retrieved 3 October 2021.
- ^ Ltd, Mark Winter, University of Sheffield and WebElements. "WebElements Periodic Table » Einsteinium » einsteinium trichloride". www.webelements.com.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ a b Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth–Heinemann. p. 1270. ISBN 978-0080379418.
- ^ a b Seaborg, G.T., ed. (23 January 1978). Proceedings of the Symposium Commemorating the 25th Anniversary of Elements 99 and 100 (PDF). Report LBL-7701. p. 62.
- ^ a b Peterson, J.R.; et al. (1979). "Preparation, characterization, and decay of einsteinium(II) in the solid state" (PDF). Le Journal de Physique. 40 (4): C4–111. CiteSeerX 10.1.1.729.8671. doi:10.1051/jphyscol:1979435. S2CID 95575017. manuscript draft
- ^ "Einsteinium Tribromide". WebElements Periodic Table. Retrieved 28/2/26.
{{cite web}}: Check date values in:|access-date=(help) - ^ "Einsteinium - Element information, properties and More". Royal Society of Chemistry. Retrieved 28/2/26.
{{cite web}}: Check date values in:|access-date=(help)