Erbium(III) nitrate

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Erbium(III) nitrate
Names
Other names
Erbium trinitrate, Erbium nitrate
Identifiers
3D model (
JSmol
)
ChemSpider
EC Number
  • pentahydrate: 233-436-7
  • hexahydrate: InChI=1S/Er.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;
    Key: SXJVNCWLEGIRSJ-UHFFFAOYSA-N
  • pentahydrate: InChI=1S/Er.3NO3.5H2O/c;3*2-1(3)4;;;;;/h;;;;5*1H2/q+3;3*-1;;;;;
    Key: LWHHUEHWVBVASY-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Er+3]
  • hexahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Er+3]
  • pentahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.[Er+3]
Properties
Er(NO3)3
Molar mass 353.274
Appearance Pink crystals
Melting point 430 °C (806 °F; 703 K)
Soluble
Hazards
GHS labelling:
GHS03: OxidizingGHS05: CorrosiveGHS07: Exclamation mark
Danger
H272, H315, H318, H319, H335
P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P310, 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).

Erbium(III) nitrate is an inorganic compound, a salt of erbium and nitric acid with the chemical formula Er(NO3)3.[1][2][3] The compound forms pink crystals, readily soluble in water, also forms crystalline hydrates.[4][5]

Synthesis

Dissolving metallic erbium in nitric acid:

Dissolving erbium oxide or hydroxide in nitric acid:

Reaction of nitrogen dioxide with metallic erbium:

Physical properties

Erbium(III) nitrate forms pink hygroscopic crystals.

Forms crystalline hydrates of the composition .

Both erbium(III) nitrate and its crystalline hydrate decompose on heating.

Dissolves in

EtOH.[6]

Chemical properties

The hydrated erbium nitrate thermally decomposed to form ErONO3 and then to

erbium oxide
.

Applications

It is used to obtain metallic erbium and is also used as a chemical reagent.

References

  1. ISBN 978-1-83968-188-2
    . Retrieved 19 August 2021.
  2. ISBN 978-5-04-234580-7
    .
  3. ISBN 978-5-04-077039-7
    . Retrieved 19 August 2021.
  4. ^ Registry of Toxic Effects of Chemical Substances. National Institute for Occupational Safety and Health. 1987. p. 2186. Retrieved 19 August 2021.
  5. ISBN 978-0-412-30120-9
    . Retrieved 19 August 2021.
  6. ISBN 978-0-470-18024-2
    . Retrieved 19 August 2021.
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