Erbium(III) nitrate


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]

Erbium(III) nitrate
Other names
Erbium trinitrate, Erbium nitrate
  • 10031-51-3
  • hexahydrate: 13476-05-6
  • pentahydrate: 10031-51-3
3D model (JSmol)
  • Interactive image
  • hexahydrate: Interactive image
  • pentahydrate: Interactive image
  • pentahydrate: 21241306
EC Number
  • pentahydrate: 233-436-7
  • hexahydrate: 202892
  • pentahydrate: 53249207
  • hexahydrate: DTXSID60158935
  • pentahydrate: DTXSID60692900
  • hexahydrate: InChI=1S/Er.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;
  • pentahydrate: InChI=1S/Er.3NO3.5H2O/c;3*2-1(3)4;;;;;/h;;;;5*1H2/q+3;3*-1;;;;;
  • [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]
Molar mass 353.274
Appearance Pink crystals
Melting point 430 °C (806 °F; 703 K)
GHS labelling:
GHS03: OxidizingGHS05: CorrosiveGHS07: Exclamation mark
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).
Infobox references


Dissolving metallic erbium in nitric acid:


Dissolving erbium oxide or hydroxide in nitric acid:


Reaction of nitrogen dioxide with metallic erbium:


Physical propertiesEdit

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 water and EtOH.[6]

Chemical propertiesEdit

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


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


  1. ^ Steglich, Patrick (21 October 2020). Electromagnetic Propagation and Waveguides in Photonics and Microwave Engineering. BoD – Books on Demand. p. 42. ISBN 978-1-83968-188-2. Retrieved 19 August 2021.
  2. ^ Милешко, Леонид; Гапоненко, Николай (21 February 2020). Основы процессов получения легированных оксидных пленок методами золь-гель технологии и анодного окисления (in Russian). Litres. p. 42. ISBN 978-5-04-234580-7.
  3. ^ Лидин, Ростислав; Молочко, Вадим; Андреева, Лариса (2 February 2019). Константы неорганических веществ. Справочник (in Russian). Litres. p. 37. 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. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3120. ISBN 978-0-412-30120-9. Retrieved 19 August 2021.
  6. ^ Sr, Richard J. Lewis (13 June 2008). Hazardous Chemicals Desk Reference. John Wiley & Sons. p. 591. ISBN 978-0-470-18024-2. Retrieved 19 August 2021.