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H9750

Sigma-Aldrich

Holmium(III) oxide

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

Synonym(s):
Rare earth
Linear Formula:
Ho2O3
CAS Number:
Molecular Weight:
377.86
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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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This Item
641863637327229679
Holmium(III) oxide ≥99.9% (rare earth content, expressed as Ho2O3)

Sigma-Aldrich

H9750

Holmium(III) oxide

Holmium(III) oxide nanoparticles, dispersion, <100 nm particle size (BET), 5 wt. % in H2O, ≥99.9% trace metals basis

Sigma-Aldrich

641863

Holmium(III) oxide

Holmium(III) oxide nanopowder, <100 nm avg. part. size (DLS), ≥99.9% trace metals basis

Sigma-Aldrich

637327

Holmium(III) oxide

Holmium(III) oxide powder, 99.999% trace metals basis

Sigma-Aldrich

229679

Holmium(III) oxide

assay

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

assay

≥99.9% trace metals basis

assay

≥99.9% trace metals basis

assay

99.999% trace metals basis

form

powder

form

dispersion

form

nanopowder

form

powder

mp

2330 °C (lit.)

mp

-

mp

2330 °C (lit.)

mp

2330 °C (lit.)

reaction suitability

reagent type: catalyst
core: holmium

reaction suitability

reagent type: catalyst
core: holmium

reaction suitability

reagent type: catalyst
core: holmium

reaction suitability

reagent type: catalyst
core: holmium

Quality Level

200

Quality Level

-

Quality Level

100

Quality Level

100

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

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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