Uranium monosulfide

Uranium monosulfide
Identifiers
CAS Number	12039-11-1;
3D model (JSmol)	Interactive image;
	InChI InChI=1S/S.U Key: BFEBVEVTVKJYGD-UHFFFAOYSA-N;
	SMILES [U].[S];
Properties
Chemical formula	US
Molar mass	270.095 g/mol
Melting point	2460 °C
Structure
Crystal structure	NaCl type (cubic)
Space group	Fm3m (No. 225)
Lattice constant	a = 548.66 pm
Formula units (Z)	4
Related compounds
Other anions	Uranium carbide; Uranium monophosphide
Related compounds	Uranium disulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Uranium monosulfide (US) is an inorganic chemical compound of uranium and sulfur.^[2] It is produced by combining uranium metal powder with hydrogen sulfide to form uranium disulfide, followed by sulfur loss during high-temperature, vacuum annealing.^[3]

Magnetically, the compound is paramagnetic at room temperature, with a Curie Temperature of 180 K.^[4] It has the largest known magnetocrystalline anisotropy of any cubic system.^[5]

References

↑ ^1.0 ^1.1 NAKAI, Eiichiro; KANNO, Masayoshi; MUKAIBO, Takashi (1969). "Oxidation Behavior of Uranium Monosulfide". Journal of Nuclear Science and Technology (Informa UK Limited) 6 (3): 138–142. doi:10.1080/18811248.1969.9732854. ISSN 0022-3131. Bibcode: 1969JNST....6..138N.
↑ "Uranium monosulfide" (in en). https://webbook.nist.gov/cgi/formula?ID=C12039111.
↑ Tillwick, D.L.; V. du Plessis, P.de (November 1976). "A study of magnetic behaviour in us single crystals" (in en). Journal of Magnetism and Magnetic Materials 3 (4): 319–328. doi:10.1016/0304-8853(76)90098-6. Bibcode: 1976JMMM....3..319T. https://linkinghub.elsevier.com/retrieve/pii/0304885376900986.
↑ Westrum, Edgar F.; Walters, Robert R.; Flotow, Howard E.; Osborne, Darrell W. (1968). "Uranium Monosulfide. The Ferromagnetic Transition. The Heat Capacity and Thermodynamic Properties from 1.5 to 350 K". The Journal of Chemical Physics (AIP Publishing) 48 (1): 155–161. doi:10.1063/1.1667893. ISSN 0021-9606. Bibcode: 1968JChPh..48..155W.
↑ Poudel, Narayan; Jeffries, Jason; Gofryk, Krzysztof (2021-07-14). "Magnetic anisotropy in uranium monosulfide probed by magnetic torque measurements". Physical Review B (American Physical Society (APS)) 104 (1). doi:10.1103/physrevb.104.014417. ISSN 2469-9950. Bibcode: 2021PhRvB.104a4417P.

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Identifiers
CAS Number	12039-11-1
3D model (JSmol)	Interactive image
InChI InChI=1S/S.U Key: BFEBVEVTVKJYGD-UHFFFAOYSA-N
SMILES [U].[S]
Properties
Chemical formula	US
Molar mass	270.095 g/mol
Melting point	2460 °C ^[1]
Structure^[1]
Crystal structure	NaCl type (cubic)
Space group	Fm3m (No. 225)
Lattice constant	a = 548.66 pm
Formula units (Z)	4
Related compounds
Other anions	Uranium carbide Uranium monophosphide
Related compounds	Uranium disulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references