Promethium(III) nitrate


Promethium(III) nitrate is an inorganic compound, a salt of promethium and nitric acid with the chemical formula Pm(NO3)3. The compound is radioactive, soluble in water[1] and forms crystalline hydrates.[2]

Promethium(III) nitrate
Other names
Promethium trinitrate, Promethium nitrate
3D model (JSmol)
  • Interactive image
  • 129629261
  • InChI=1S/3NO3.Pm/c3*2-1(3)4;/q3*-1;
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Pm]
Molar mass 206.918
Appearance Purple-pink solid (hydrate)
GHS labelling:
Related compounds
Related compounds
Samarium(III) nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references


Reaction of prometium and nitric acid:


Physical propertiesEdit

Promethium(III) nitrate hydrate forms purple-pink solid.[2]

Forms crystalline hydrates of the composition  .[3][4]

Chemical propertiesEdit

Promethium(III) nitrate thermally decomposes to form prometium oxide.[5]


  1. ^ Бекман, Игорь (1 July 2021). Радиохимия в 2 т. Т. 1 Фундаментальная радиохимия. Учебник и практикум для академического бакалавриата (in Russian). Litres. p. 157. ISBN 978-5-04-026362-2. Retrieved 20 August 2021.
  2. ^ a b Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3619. ISBN 978-0-412-30120-9. Retrieved 20 August 2021.
  3. ^ "Praseodymium(III) nitrate hexahydrate". Sigma Aldrich. Retrieved 20 August 2021.
  4. ^ Chemistry, session C. U.S. Department of Commerce. 1965. p. 114. Retrieved 20 August 2021.
  5. ^ Orr, P. B. (1965). Evidence of the Absence of Long-lived Isotopes of Promethium from Fission of Uranium, and the Purification of Promethium for the Establishment of a Primary Spectrographic Standard. Oak Ridge National Laboratory. p. 10. Retrieved 20 August 2021.