Dysprosium(III) nitrate explained

Dysprosium(III) nitrate is an inorganic compound, a salt of dysprosium and nitric acid with the chemical formula Dy(NO₃)₃. The compound forms yellowish crystals, dissolves in water, forms a crystalline hydrate.^[1]

Synthesis

Anhydrous salt is obtained by the action of nitrogen dioxide on dysprosium(III) oxide:^[2]

2Dy _{2O} _{3} +9N _{2O} _{4} \xrightarrow{150 ^{oC} 4 Dy(NO _{3 )} _{3} + 6 NO }

The action of nitrogen dioxide on metallic dysprosium:

Dy+3N _{2O} _{4} \xrightarrow{200 ^{oC} Dy(NO _{3 )} _{3} + 3 NO }

Physical properties

Dysprosium(III) nitrate forms yellowish crystals.^[3]

The anhydrous nitrate forms a crystalline hydrate in wet air with the ideal composition of, which melts in its own crystallization water at 88.6 °C.^{[4] [5]}

All hydrates (anhydrous, pentahydrate, and hexahydrate) are soluble in water and ethanol, hygroscopic.

Chemical properties

Hydrated dysprosium nitrate thermally decomposes to form, and further heating produces dysprosium oxide.

Application

Dysprosium(III) nitrate is used as a catalyst.

Notes and References

1. Book: Macintyre . Jane E. . Dictionary of Inorganic Compounds . 23 July 1992 . . 978-0-412-30120-9 . 3117 . 18 August 2021 . en.
2. Book: Edelmann . Frank T. . Herrmann . Wolfgang A. . Synthetic Methods of Organometallic and Inorganic Chemistry, Volume 6, 1997: Volume 6: Lanthanides and Actinides . 14 May 2014 . . 978-3-13-179221-1 . 23 . 18 August 2021 . en.
3. Web site: Dysprosium(III) nitrate - Hazardous Agents Haz-Map . haz-map.com . 18 August 2021.
4. Web site: Dysprosium(III) nitrate hydrate . . 18 August 2021.
5. Web site: 10031-49-9 - Dysprosium(III) nitrate pentahydrate, 99.9% (REO) - 12922 - Alfa Aesar . . 18 August 2021.