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Merck

278513

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:
Molecular Weight:
362.50
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
235-060-9
MDL number:
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Quality Segment

assay

99.9% trace metals basis

form

powder

composition

Gd₂O₃

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

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.


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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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