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]
Dissolving metallic erbium in nitric acid:
Dissolving erbium oxide or hydroxide in nitric acid:
Reaction of nitrogen dioxide with metallic erbium:
Erbium(III) nitrate forms pink hygroscopic crystals.
Forms crystalline hydrates of the composition Er ( NO 3 ) 3 ⋅ ⋅ --> 5 H 2 O {\displaystyle {\ce {Er(NO3)3*5H2O}}} .
Both erbium(III) nitrate and its crystalline hydrate decompose on heating.
Dissolves in water and EtOH.[6]
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.
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