Thulium(III) nitrate is an inorganic compound, a salt of thulium and nitric acid with the chemical formula Tm(NO3)3.[1][2][3] The compound forms dark-green crystals, readily soluble in water, also forms crystalline hydrates.

Thulium(III) nitrate
Names
Other names
Thulium trinitrate, Thulium nitrate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • pentahydrate: 628-321-7
  • pentahydrate: InChI=1S/3NO3.5H2O.Tm/c3*2-1(3)4;;;;;;/h;;;5*1H2;/q3*-1;;;;;;+3
    Key: PEYIBPJKEYRLDB-UHFFFAOYSA-N
  • hexahydrate: InChI=1S/3NO3.6H2O.Tm/c3*2-1(3)4;;;;;;;/h;;;6*1H2;/q3*-1;;;;;;;+3
    Key: FMAWDVZGWCKHEX-UHFFFAOYSA-N
  • tetrahydrate: InChI=1S/3NO3.4H2O.Tm/c3*2-1(3)4;;;;;/h;;;4*1H2;/q3*-1;;;;;+3
    Key: HUSGBQPUDXPWPT-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Tm+3]
  • pentahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.[Tm+3]
  • hexahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Tm+3]
  • tetrahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.[Tm+3]
Properties
Tm(NO3)3
Molar mass 354.949 g/mol
Appearance Dark-green crystals
Soluble
Hazards
GHS labelling:
GHS03: OxidizingGHS07: Exclamation mark
Warning
H272, H315, H319, H335
P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
Related compounds
Related compounds
Terbium(III) nitrate, Lutetium(III) nitrate, Cerium(III) nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Synthesis

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Reaction of thulium and nitric acid:[4]

Tm + 6 HNO3 → Tm(NO3)3 + 3 NO2 + 3 H2O

Reaction of thulium hydroxide and nitric acid:

Tm(OH)3 + 3 HNO3 → Tm(NO3)3 + 3 H2O

Physical properties

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Thulium(III) nitrate forms dark-green hygroscopic crystals.

Forms crystalline hydrates of the composition Tm(NO3)3·5H2O.[5][6]

Soluble in water and ethanol.[7]

Chemical properties

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Both the compound and its crystalline hydrate decompose on moderate heating.

Hydrated thulium nitrate thermally decomposes to form TmONO3 and decomposes to thulium oxide upon further heating.

Applications

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Thulium(III) nitrate hydrate is used as a reagent. Also used in optical glasses, ceramics, catalysts, electrical components, and photo-optical materials.[8]

References

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  1. ^ Волков, А.И.; Жарский, И.М. (2005). Большой химический справочник (in Russian). Современная школа. p. 132. ISBN 985-6751-04-7.
  2. ^ Skerencak, A.; Panak, Petra J.; Hauser, W.; Neck, Volker; Klenze, R.; Lindqvist-Reis, P.; Fanghänel, Thomas (January 2009). "TRLFS study on the complexation of Cm(III) with nitrate in the temperature range from 5 to 200 °C". Radiochimica Acta. 97 (8). doi:10.1524/ract.2009.1631. S2CID 97982164. Retrieved 19 August 2021.
  3. ^ Modolo, Giuseppe; Kluxen, Paul; Geist, Andreas (January 2010). "Demonstration of the LUCA process for the separation of americium(III) from curium(III), californium(III), and lanthanides(III) in acidic solution using a synergistic mixture of bis(chlorophenyl)dithiophosphinic acid and tris(2-ethylhexyl)phosphate" (PDF). Radiochimica Acta. 98 (4). doi:10.1524/ract.2010.1708. S2CID 96774564.
  4. ^ Edelmann, Frank T.; Herrmann, Wolfgang A. (14 May 2014). Synthetic Methods of Organometallic and Inorganic Chemistry, Volume 6, 1997: Volume 6: Lanthanides and Actinides. Georg Thieme Verlag. p. 23. ISBN 978-3-13-179221-1. Retrieved 19 August 2021.
  5. ^ "Thulium(III) nitrate pentahydrate". Sigma Aldrich. Retrieved 19 August 2021.
  6. ^ Elements, American. "Thulium(III) Nitrate Pentahydrate". American Elements. Retrieved 19 August 2021.
  7. ^ Haynes, William M. (9 June 2015). CRC Handbook of Chemistry and Physics, 96th Edition. CRC Press. p. 4-95. ISBN 978-1-4822-6097-7. Retrieved 19 August 2021.
  8. ^ "14579 Thulium(III) nitrate hydrate, REacton®, 99.9% (REO)". Alfa Aesar. Retrieved 19 August 2021.