Uranium monosulfide
3D model (JSmol)
  • InChI=1S/S.U
  • [U].[S]
Molar mass 270.095 g/mol
Melting point 2460 °C [1]
NaCl type (cubic)
Fm3m (No. 225)
a = 548.66 pm
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).

Uranium monosulfide (US) is an inorganic chemical compound of uranium and sulfur.[2]

Magnetically, the compound is paramagnetic at room temperature, with a Curie Temperature of 180 K.[3] It has the largest known magnetocrystalline anisotropy of any cubic system.[4]


  1. ^ a b NAKAI, Eiichiro; KANNO, Masayoshi; MUKAIBO, Takashi (1969). "Oxidation Behavior of Uranium Monosulfide". Journal of Nuclear Science and Technology. 6 (3). Informa UK Limited: 138–142. Bibcode:1969JNST....6..138N. doi:10.1080/18811248.1969.9732854. ISSN 0022-3131.
  2. ^ "Uranium monosulfide". webbook.nist.gov. Retrieved 2022-11-23.
  3. ^ 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. 48 (1). AIP Publishing: 155–161. Bibcode:1968JChPh..48..155W. doi:10.1063/1.1667893. hdl:2027.42/70623. ISSN 0021-9606.
  4. ^ Poudel, Narayan; Jeffries, Jason; Gofryk, Krzysztof (2021-07-14). "Magnetic anisotropy in uranium monosulfide probed by magnetic torque measurements". Physical Review B. 104 (1). American Physical Society (APS): 014417. arXiv:2106.12464. Bibcode:2021PhRvB.104a4417P. doi:10.1103/physrevb.104.014417. ISSN 2469-9950. S2CID 235606157.