Einsteinium (III) oxide

Crystal structure
	__ Es 3+ __ O 2−
Space group	Ia 3 (No. 206)
Lattice parameters	a = 1076.6 pm
General
Surname	Einsteinium (III) oxide
other names	Einsteinium Sequioxide; Dieinsteinium Trioxid;
Ratio formula	It 2 O 3
Brief description	colorless solid
External identifiers / databases
Wikidata	Q82795
properties
Molar mass	554 g mol −1 ( 253 Es)
Physical state	firmly
Hazard and safety information
	; Radioactive
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Einsteinium (III) oxide is a chemical compound of the elements einsteinium and oxygen with the empirical formula Es ₂ O ₃ .

presentation

Einsteinium (III) oxide is obtained by calcining the corresponding nitrate in submicrogram quantities.

properties

Einsteinium (III) oxide is a colorless solid. Three modifications are known. The lattice parameter of the body-centered cubic crystal is 1076.6 ± 0.6 pm . On the basis of this, the ionic radius of Es ^{3+ was} calculated to be 92.8 pm. A monoclinic and a hexagonal lanthanum (III) oxide structure are also known.

safety instructions

Classifications according to the CLP regulation are not available because they only include chemical hazard and play a completely subordinate role compared to the hazards based on radioactivity . The latter also only applies if the amount of substance involved is relevant.

Individual evidence

^ ^A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1972.
↑ The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.
^ ^A ^b R. G. Haire, RD Baybarz: Identification and Analysis of Einsteinium Sesquioxide by Electron Diffraction , in: Journal of Inorganic and Nuclear Chemistry , 1973 , 35 (2), pp. 489-496 ( doi : 10.1016 / 0022-1902 (73 ) 80561-5 ).
↑ RG Haire, L. Eyring, in: Handbook on the Physics and Chemistry of Rare Earths , Vol. 18 Lanthanoids and Actinides Chemistry (edited by KA Gscheidner, Jr., L. Eyring, GR Choppin, GH Lander), North- Holland, New York 1994, pp. 414-505.

literature

Richard G. Haire: Einsteinium , in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (Eds.): The Chemistry of the Actinide and Transactinide Elements , Springer, Dordrecht 2006; ISBN 1-4020-3555-1 , pp. 1577-1620 ( doi : 10.1007 / 1-4020-3598-5_12 ).

[HOWI_1972-1] A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1972.

[NV-2] The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.

[Identification-3] A ^b R. G. Haire, RD Baybarz: Identification and Analysis of Einsteinium Sesquioxide by Electron Diffraction , in: Journal of Inorganic and Nuclear Chemistry , 1973 , 35 (2), pp. 489-496 ( doi : 10.1016 / 0022-1902 (73 ) 80561-5 ).

[4] RG Haire, L. Eyring, in: Handbook on the Physics and Chemistry of Rare Earths , Vol. 18 Lanthanoids and Actinides Chemistry (edited by KA Gscheidner, Jr., L. Eyring, GR Choppin, GH Lander), North- Holland, New York 1994, pp. 414-505.