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Merck
CN

229679

Holmium(III) oxide

powder, 99.999% trace metals basis

Synonym(s):

Diholmium trioxide, Holmia, Holmium oxide, Holmium sesquioxide, Holmium trioxide, Holmium(3+) oxide, Rare earth

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About This Item

Linear Formula:
Ho2O3
CAS Number:
12055-62-8
Molecular Weight:
377.86
EC Number:
235-015-3
MDL number:
MFCD00011053
UNSPSC Code:
12352303
PubChem Substance ID:
24853296
NACRES:
NA.23

Key Documents

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Assay

99.999% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: holmium

mp

2330 °C (lit.)

SMILES string

O=[Ho]O[Ho]=O

InChI

1S/2Ho.3O

InChI key

JYTUFVYWTIKZGR-UHFFFAOYSA-N

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General description

Holmium(III) oxide (Ho₂O₃) is a rare earth metal oxide known for its unique optical and electrical properties. It exhibits significant utility as a contrast agent in magnetic resonance imaging (MRI), in wavelength-calibration instruments, and as a catalyst in pyrolysis processes. Additionally, Ho₂O₃ is utilized in producing specialty glasses and ceramics, where it imparts distinctive colors and enhances the material′s properties. Its high melting point and chemical stability make it suitable for demanding environments in both industrial and medical sectors.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000468971
0000468971
0000452200
0000452200
0000423621

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