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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

Quality Level

100

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

Signal Word

Warning

Hazard Statements

H319

Precautionary Statements

P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000419538
0000419538
0000413276
0000413276
0000314113

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Weihua Di et al.
Biomaterials, 32(29), 7226-7233 (2011-07-13)
Multifunctional materials for biological use have mostly been designed with composite or hybrid nanostructures in which two or more components are incorporated. The present work reports on a multifunctional biomaterial based on single-phased luminescent mesoporous lanthanide oxide nanoparticles that combine
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
Nikesh Gupta et al.
International journal of nanomedicine, 7, 5491-5500 (2012-12-13)
Mesoporous silica nanoparticles coencapsulating gadolinium oxide and horseradish peroxidase (HRP) have been synthesized in the aqueous core of sodium bis-(2-ethylhexyl) sulfosuccinate (AOT)-hexane-water reverse micelle. The average diameter of these silica particles is around 25 nm and the particles are spherical
Yuanzhi Shao et al.
Biomaterials, 33(27), 6438-6446 (2012-06-19)
The feasibility of the gadolinium-doped mesoporous silica nanocomposite Gd(2)O(3)@MCM-41 as a safe, effective MRI nanoprobe has been validated in the current investigation systematically from atomistic and molecular modeling to its synthesis and characterization on in vivo MR imaging and biocompatibility.
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