Thulium(III) nitrate

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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
Cerium(III) nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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.

Synthesis

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

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

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

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

References

  1. ISBN 985-6751-04-7
    .
  2. S2CID 97982164
    . Retrieved 19 August 2021.
  3. S2CID 96774564
    .
  4. ISBN 978-3-13-179221-1
    . Retrieved 19 August 2021.
  5. Sigma Aldrich
    . Retrieved 19 August 2021.
  6. ^ Elements, American. "Thulium(III) Nitrate Pentahydrate". American Elements. Retrieved 19 August 2021.
  7. 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.
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