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H9750

Sigma-Aldrich

Holmium(III) oxide

≥99.9% (rare earth content, expressed as Ho2O3)

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Synonym(s):
Rare earth
Linear Formula:
Ho2O3
CAS Number:
12055-62-8
Molecular Weight:
377.86
EC Number:
235-015-3
MDL number:
MFCD00011053
PubChem Substance ID:
57654284
NACRES:
NA.23

Quality Level

200

Assay

≥99.9% (rare earth content, expressed as Ho2O3)

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 is a white crystalline powder and is a rare-earth metal oxide. Holmium(III) oxide is a highly stable and resistant to chemical attack. It has a high melting point of 2,380 °C and a high density of 8.8 g/cm3. Holmium(III) oxide is used as a raw material in the production of holmium and holmium alloys, as a magneto strictive material in sensors, and a catalyst in the production of synthetic fuels among other applications.

Application

Holmium(III)oxide can be used as:
  • A starting material to prepare Ho2O3-PVAfilm for generating stable Q-switching pulses in a thulium-doped fiber laser(TDFL) cavity.
  • A catalyst for oxidative coupling of methane.
It can also be used as a dopant in the preparation of:
  • Cadmium lead borate glasses.
  • Diamond/copper composites to eliminate interfacial defects through the spark plasma sintering (SPS) method.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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