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278513

Sigma-Aldrich

Gadolinium(III) oxide

powder, 99.9% trace metals basis

Synonym(s):

Digadolinium trioxide, Gadolinia, Gadolinium oxide, Gadolinium trioxide

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About This Item

Linear Formula:
Gd2O3
CAS Number:
12064-62-9
Molecular Weight:
362.50
EC Number:
235-060-9
MDL number:
MFCD00011026
UNSPSC Code:
12352303
PubChem Substance ID:
24856820
NACRES:
NA.23
Pricing and availability is not currently available.

assay

99.9% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: gadolinium

mp

2330 °C (lit.)

density

7.407 g/mL at 20 °C (lit.)

SMILES string

O=[Gd]O[Gd]=O

InChI

1S/2Gd.3O

InChI key

RNYFGGMJZRTZKO-UHFFFAOYSA-N

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General description

Gadolinium(III) oxide is a rare-earth oxide known for its high thermal stability and unique magnetic properties, making it valuable in various high-temperature applications. It is widely used as a host material in solid-state lasers, where doping with rare-earth ions like neodymium or erbium enhances laser efficiency and enables specific wavelengths for telecommunications and medical procedures3. Additionally, its nanoparticles are utilized in biomedical imaging as MRI contrast agents due to their excellent biocompatibility and ability to improve image resolution.

application

Gadolinium(III) oxide is used as a dopant in zirconia to improve the ionic conductivity of solid electrolytes in solid oxide fuel cells. Its presence enhances the performance and efficiency of these energy conversion devices. It is also used as a component in thermal barrier coatings for gas turbine engines and other high-temperature applications. Its thermal stability and low thermal conductivity make it suitable for protecting components from extreme heat.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000419538
0000419538
0000413276
0000413276
0000314113

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Magdiel Inggrid Setyawati et al.
Journal of biomedical materials research. Part A, 101(3), 633-640 (2012-08-29)
Engineered nanomaterials have become prevalent in our everyday life. While the popularity of using nanomaterials in consumer products continues to rise, increasing awareness of nanotoxicology has also fuelled efforts to accelerate our understanding of the ill effects that different nanomaterials
Taejong Paik et al.
ACS nano, 7(3), 2850-2859 (2013-02-26)
Here, we report the shape-controlled synthesis of tripodal and triangular gadolinium oxide (Gd2O3) nanoplates. In the presence of lithium ions, the shape of the nanocrystals is readily controlled by tailoring reaction parameters such as temperature and time. We observe that
Yu Kimura et al.
Advanced healthcare materials, 1(5), 657-660 (2012-11-28)
The synthesis, characterization, and functional evaluation of new size-controlled and biocompatible Gd(2) O(3) nanoparticles as a bimodal contrast agent for use in photoacoustic (PA) and magnetic resonance (MR) imaging are reported. These nanoparticles show a clear PA image by themselves
Aamir D Abid et al.
Particle and fibre toxicology, 10, 1-1 (2013-01-12)
The deposition, clearance and translocation of europium-doped gadolinium oxide nanoparticles in a mouse lung were investigated experimentally. Nanoparticles were synthesized by spray flame pyrolysis. The particle size, crystallinity and surface properties were characterized. Following instillation, the concentrations of particles in
Zijian Zhou et al.
Advanced materials (Deerfield Beach, Fla.), 24(46), 6223-6228 (2012-09-14)
Monodisperse Gd(2) O(3) -embedded iron oxide (GdIO) nanoparticles can simultaneously enhance the local magnetic field intensities of each other under an external magnetic field and result in synergistic enhancement of T(1) and T(2) effects. GdIO nanoparticles have the unique property
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