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Terbium(III) nitrate

Chemical compound From Wikipedia, the free encyclopedia

Terbium(III) nitrate is an inorganic chemical compound, a salt of terbium and nitric acid, with the formula Tb(NO3)3. The hexahydrate crystallizes as triclinic colorless crystals with the formula [Tb(NO3)3(H2O)4]·2H2O.[1] It can be used to synthesize materials with green emission.[2]

Quick facts Names, Identifiers ...
Terbium(III) nitrate
Hydrate form of terbium nitrate (left) and luminescence under 254 nm UV light (right)
Names
Other names
Terbium nitrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.113 Edit this at Wikidata
EC Number
  • 233-138-7
  • hexahydrate: 627-823-3
UNII
  • InChI=1S/3NO3.Tb/c3*2-1(3)4;/q3*-1;+3
    Key: YJVUGDIORBKPLC-UHFFFAOYSA-N
  • hexahydrate: InChI=1S/3NO3.6H2O.Tb/c3*2-1(3)4;;;;;;;/h;;;6*1H2;/q3*-1;;;;;;;+3
    Key: UTCARTSNNKGRTD-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Tb+3]
  • hexahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Tb+3]
Properties
Tb(NO3)3
Molar mass 344.946
Appearance Colorless crystals (hexahydrate)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation

Terbium(III) nitrate can be prepared by dissolving terbium(III,IV) oxide in a mixture of aqueous HNO3 and H2O2 solution.[3]

Terbium(III) nitrate can be obtained by reacting terbium(III) oxide with nitric acid and crystallizing then drying the crystals with 45~55% sulfuric acid to obtain the hexahydrate.[4]

Properties

It reacts with NH4HCO3 to produce Tb2(CO3)3 along with its basic carbonate.[5] It forms Tb(NO3)2−5 in CH3CN with excess nitrate anions.[6]

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