Holmium(III) nitrate

Chemical compound From Wikipedia, the free encyclopedia

Holmium (III) nitrate is an inorganic compound, a salt of holmium and nitric acid with the chemical formula Ho(NO3)3.[1] The compound forms yellowish crystals, dissolves in water, also forms crystalline hydrates.[2]

Quick facts Names, Identifiers ...
Holmium(III) nitrate
Names
Other names
Holmium trinitrate, Holmium nitrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.386 Edit this at Wikidata
EC Number
  • 233-438-8
  • InChI=1S/Ho.3NO3/c;3*2-1(3)4/q+3;3*-1
    Key: WDVGLADRSBQDDY-UHFFFAOYSA-N
  • pentahydrate: InChI=1S/Ho.3NO3.5H2O/c;3*2-1(3)4;;;;;/h;;;;5*1H2/q+3;3*-1;;;;;
    Key: BJUGWWDCFYEYOA-UHFFFAOYSA-N
  • hexahydrate: InChI=1S/Ho.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;
    Key: OMTYKYWUMGRKES-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Ho+3]
  • pentahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.[Ho+3]
  • hexahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Ho+3]
Properties
Ho(NO3)3
Molar mass 350,95
Appearance Yellowish crystals
Melting point 754 °C (1,389 °F; 1,027 K)
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
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis

Anhydrous salt is obtained by the action of nitrogen dioxide on holmium(III) oxide:

Effect of nitrogen dioxide on metallic holmium:

Reaction of holmium hydroxide and nitric acid:

Physical properties

Holmium(III) nitrate forms yellowish crystals.

Forms a crystalline hydrate of the composition Ho(NO3)3•5H2O.[3]

Soluble in water and ethanol.

Chemical properties

Hydrated holmitic nitrate thermally decomposes to form HoONO
3 and decomposes to holmium oxide upon subsequent heating.

Application

The compound is used for the production of ceramics and glass.

Also used to produce metallic holmium and as a chemical reagent.

References

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