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Terbium(III) oxide

January 25, 2023

Terbium(III) oxide, also known as terbium sesquioxide, is a sesquioxide of the rare earth metal terbium, having chemical formula Tb
2O
3. It is a p-type semiconductor, which conducts protons, which is enhanced when doped with calcium.[3] It may be prepared by the reduction of Tb
4O
7 in hydrogen at 1300 °C for 24 hours.[4]

Terbium(III) oxide
Names
IUPAC name
terbium(III) oxide
Other names
terbium trioxide, terbia, terbium sesquioxide
Identifiers
  • 12036-41-8 Y
3D model (JSmol)
  • Interactive image
ECHA InfoCard 100.031.668
EC Number
  • 234-849-5
  • 159410
  • DTXSID40276469
  • InChI=1/3O.2Tb/q3*-2;2*+3
  • [O-2].[O-2].[O-2].[Tb+3].[Tb+3]
Properties
O3Tb2
Molar mass 365.848 g·mol−1
Appearance white crystals
Density 7.91 g/cm3
Melting point 2,410 °C (4,370 °F; 2,680 K)
0.07834 cm3/mol
Structure
Cubic, cI80
Ia3, No. 206[1]
a = 1.057 nm
Thermochemistry
156.90 J/mol·K [2]
-1865.23 kJ/mol [2]
-1776.553 kJ/mol [2]
Hazards
GHS labelling:
Warning
H319, H410
P264, P273, P280, P305+P351+P338, P337+P313, P391, P501
Related compounds
Other anions
 Terbium(III) chloride
Other cations
 Gadolinium(III) oxide
Dysprosium(III) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Tb4O7 + H2 → 2 Tb2O3 + H2O

It is a basic oxide and easily dissolved to dilute acids, and then almost colourless terbium salt is formed.

Tb2O3 + 6 H+ → 2 Tb3+ + 3 H2O

The crystal structure is cubic and the lattice constant is a = 1057 pm.[5]

References

  1. ^ Curzon A.E.; Chlebek H.G. (1973). "The observation of face centred cubic Gd, Tb, Dy, Ho, Er and Tm in the form of thin films and their oxidation". J. Phys. F. 3 (1): 1–5. doi:10.1088/0305-4608/3/1/009.
  2. ^ a b c R. Robie, B. Hemingway, and J. Fisher, "Thermodynamic Properties of Minerals and Related Substances at 298.15K and 1bar Pressure and at Higher Temperatures," US Geol. Surv., vol. 1452, 1978.[1]
  3. ^ Reidar Haugsrud; Yngve Larring & Truls Norby (December 2005). "Proton conductivity of Ca-doped Tb
    2    O
    3    ". Solid State Ionics. Elsevier B.V. 176 (39–40): 2957–2961. doi:10.1016/j.ssi.2005.09.030.
  4. ^ G. J. McCarthy (October 1971). "Crystal data on C-type terbium sesquioxide (Tb
    2    O
    3    )". Journal of Applied Crystallography. 4 (5): 399–400. doi:10.1107/S0021889871007295.
  5. ^ N. C. Baenzinger, H. A. Eick, H. S. Schuldt, L. Eyring: Terbium Oxides. III. X-Ray Diffraction Studies of Several Stable Phases. In: Journal of the American Chemical Society, 1961, 83, 10, S. 2219-23.


 

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January 25, 2023
terbium, oxide, also, known, terbium, sesquioxide, sesquioxide, rare, earth, metal, terbium, having, chemical, formula, type, semiconductor, which, conducts, protons, which, enhanced, when, doped, with, calcium, prepared, reduction, hydrogen, 1300, hours, name. Terbium III oxide also known as terbium sesquioxide is a sesquioxide of the rare earth metal terbium having chemical formula Tb2 O3 It is a p type semiconductor which conducts protons which is enhanced when doped with calcium 3 It may be prepared by the reduction of Tb4 O7 in hydrogen at 1300 C for 24 hours 4 Terbium III oxide NamesIUPAC name terbium III oxideOther names terbium trioxide terbia terbium sesquioxideIdentifiersCAS Number 12036 41 8 Y3D model JSmol Interactive imageECHA InfoCard 100 031 668EC Number 234 849 5PubChem CID 159410CompTox Dashboard EPA DTXSID40276469InChI InChI 1 3O 2Tb q3 2 2 3SMILES O 2 O 2 O 2 Tb 3 Tb 3 PropertiesChemical formula O 3Tb 2Molar mass 365 848 g mol 1Appearance white crystalsDensity 7 91 g cm3Melting point 2 410 C 4 370 F 2 680 K Magnetic susceptibility x 0 07834 cm3 molStructureCrystal structure Cubic cI80Space group Ia3 No 206 1 Lattice constant a 1 057 nmThermochemistryStd molarentropy S 298 156 90 J mol K 2 Std enthalpy offormation DfH 298 1865 23 kJ mol 2 Gibbs free energy DfG 1776 553 kJ mol 2 HazardsGHS labelling PictogramsSignal word WarningHazard statements H319 H410Precautionary statements P264 P273 P280 P305 P351 P338 P337 P313 P391 P501Related compoundsOther anions Terbium III chlorideOther cations Gadolinium III oxideDysprosium III oxideExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Y verify what is Y N Infobox references Tb4O7 H2 2 Tb2O3 H2OIt is a basic oxide and easily dissolved to dilute acids and then almost colourless terbium salt is formed Tb2O3 6 H 2 Tb3 3 H2OThe crystal structure is cubic and the lattice constant is a 1057 pm 5 References Edit Curzon A E Chlebek H G 1973 The observation of face centred cubic Gd Tb Dy Ho Er and Tm in the form of thin films and their oxidation J Phys F 3 1 1 5 doi 10 1088 0305 4608 3 1 009 a b c R Robie B Hemingway and J Fisher Thermodynamic Properties of Minerals and Related Substances at 298 15K and 1bar Pressure and at Higher Temperatures US Geol Surv vol 1452 1978 1 Reidar Haugsrud Yngve Larring amp Truls Norby December 2005 Proton conductivity of Ca doped Tb2 O3 Solid State Ionics Elsevier B V 176 39 40 2957 2961 doi 10 1016 j ssi 2005 09 030 G J McCarthy October 1971 Crystal data on C type terbium sesquioxide Tb2 O3 Journal of Applied Crystallography 4 5 399 400 doi 10 1107 S0021889871007295 N C Baenzinger H A Eick H S Schuldt L Eyring Terbium Oxides III X Ray Diffraction Studies of Several Stable Phases In Journal of the American Chemical Society 1961 83 10 S 2219 23 This inorganic compound related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Terbium III oxide amp oldid 1077761933, wikipedia, wiki, book, books, library,

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