Chemistry:Erbium(III) nitrate

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Erbium(III) nitrate
Erbium nitrate.jpg
Names
Other names
Erbium trinitrate, Erbium nitrate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • pentahydrate: 233-436-7
Properties
Er(NO3)3
Molar mass 353.274
Appearance Pink crystals
Melting point 430 °C (806 °F; 703 K)
Soluble
Hazards
GHS pictograms GHS03: OxidizingGHS05: CorrosiveGHS07: Harmful
GHS Signal word Danger
H272, H315, H318, H319, H335
P210, P220, P221, P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P310, P312, P321, P332+313, P337+313, P362, P370+378, P403+233, 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

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:

[math]\displaystyle{ \mathsf{Er + 6HNO_3 \ \xrightarrow{}\ Er(NO_3)_3 + 3NO_2 + 3H_2O\uparrow } }[/math]

Dissolving erbium oxide or hydroxide in nitric acid:

[math]\displaystyle{ \mathsf{Er(OH)_3 + 3HNO_3 \ \xrightarrow{}\ Er(NO_3)_3 + 3H_2O\uparrow } }[/math]

Reaction of nitrogen dioxide with metallic erbium:

[math]\displaystyle{ \mathsf{Er + 3N_2O_4 \ \xrightarrow{}\ Er(NO_3)_3 + 3NO\uparrow } }[/math]

Physical properties

Erbium(III) nitrate forms pink hygroscopic crystals.

Forms crystalline hydrates of the composition [math]\ce{ Er(NO3)3*5H2O }[/math].

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

Dissolves in water and 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. Steglich, Patrick (21 October 2020) (in en). Electromagnetic Propagation and Waveguides in Photonics and Microwave Engineering. BoD – Books on Demand. p. 42. ISBN 978-1-83968-188-2. https://books.google.com/books?id=LGwtEAAAQBAJ&dq=Erbium(III)+nitrate&pg=PA42. Retrieved 19 August 2021. 
  2. Милешко, Леонид; Гапоненко, Николай (21 February 2020) (in ru). Основы процессов получения легированных оксидных пленок методами золь-гель технологии и анодного окисления. Litres. p. 42. ISBN 978-5-04-234580-7. https://books.google.com/books?id=x1vSDwAAQBAJ&dq=%D0%BD%D0%B8%D1%82%D1%80%D0%B0%D1%82+%D1%8D%D1%80%D0%B1%D0%B8%D0%B9&pg=PA42. 
  3. Лидин, Ростислав; Молочко, Вадим; Андреева, Лариса (2 February 2019) (in ru). Константы неорганических веществ. Справочник. Litres. p. 37. ISBN 978-5-04-077039-7. https://books.google.com/books?id=-cQ0DwAAQBAJ&dq=%D0%BD%D0%B8%D1%82%D1%80%D0%B0%D1%82+%D1%8D%D1%80%D0%B1%D0%B8%D0%B9&pg=PA37. Retrieved 19 August 2021. 
  4. (in en) Registry of Toxic Effects of Chemical Substances. National Institute for Occupational Safety and Health. 1987. p. 2186. https://books.google.com/books?id=gjbHG6ePMywC&dq=Erbium(III)+nitrate&pg=PA2186. Retrieved 19 August 2021. 
  5. Macintyre, Jane E. (23 July 1992) (in en). Dictionary of Inorganic Compounds. CRC Press. p. 3120. ISBN 978-0-412-30120-9. https://books.google.com/books?id=9eJvoNCSCRMC&dq=Erbium(III)+nitrate&pg=PA3120. Retrieved 19 August 2021. 
  6. Sr, Richard J. Lewis (13 June 2008) (in en). Hazardous Chemicals Desk Reference. John Wiley & Sons. p. 591. ISBN 978-0-470-18024-2. https://books.google.com/books?id=WZeBDwAAQBAJ&dq=Erbium(III)+nitrate&pg=PA591. Retrieved 19 August 2021. 
Salts and covalent derivatives of the nitrate ion