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H9750

Sigma-Aldrich

Holmium(III) oxide

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

Synonym(s):

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:
12352300
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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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