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]

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

  1. ^ Лидин, Ростислав; Молочко, Вадим; Андреева, Лариса (2 February 2019). Константы неорганических веществ. Справочник (in Russian). Litres. p. 40. ISBN 978-5-04-077039-7. Retrieved 18 August 2021.
  2. ^ "14483-18-2 - Holmium(III) nitrate pentahydrate, REacton®, 99.9% (REO) - 14588 - Alfa Aesar". Alfa Aesar. Retrieved 18 August 2021.
  3. ^ "Holmium(III) nitrate pentahydrate". Sigma Aldrich. Retrieved 18 August 2021.
Allikas: https://en.wikipedia.org/wiki/Holmium(III)_nitrate
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