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Dysprosium(III) nitrate


Dysprosium(III) nitrate


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.

Synthesis

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

2 D y 2 O 3 + 9 N 2 O 4   150 o C   4 D y ( N O 3 ) 3 + 6 N O {\displaystyle {\mathsf {2Dy_{2}O_{3}+9N_{2}O_{4}\ {\xrightarrow {150^{o}C}}\ 4Dy(NO_{3})_{3}+6NO}}}

The action of nitrogen dioxide on metallic dysprosium:

D y + 3 N 2 O 4   200 o C   D y ( N O 3 ) 3 + 3 N O {\displaystyle {\mathsf {Dy+3N_{2}O_{4}\ {\xrightarrow {200^{o}C}}\ Dy(NO_{3})_{3}+3NO}}}

Physical properties

Dysprosium(III) nitrate forms yellowish crystals.

Forms a crystalline hydrate of the composition Dy ( NO 3 ) 3 5 H 2 O {\displaystyle {\ce {Dy(NO3)3*5H2O}}} , which melts in its own crystallization water at 88.6 °C.

Soluble in water and ethanol, hygroscopic.

Chemical properties

Hydrated dysprosium nitrate thermally decomposes to form DyONO 3 {\displaystyle {\ce {DyONO3}}} , and further heating produces dysprosium oxide.

Application

Dysprosium(III) nitrate is used as a catalyst.

References

Collection James Bond 007

Text submitted to CC-BY-SA license. Source: Dysprosium(III) nitrate by Wikipedia (Historical)



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