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Sigma-Aldrich

Scandium(III) oxide

99.9% trace rare earth metals basis

Synonym(s):

Discandium trioxide, Scandia, Scandium oxide, Scandium trioxide

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About This Item

Linear Formula:
Sc2O3
CAS Number:
12060-08-1
Molecular Weight:
137.91
EC Number:
235-042-0
MDL number:
MFCD00011223
UNSPSC Code:
12161600
PubChem Substance ID:
24858634
NACRES:
NA.22

Assay

99.9% trace rare earth metals basis

form

powder

reaction suitability

core: scandium
reagent type: catalyst

SMILES string

O=[Sc]O[Sc]=O

InChI

1S/3O.2Sc

InChI key

HYXGAEYDKFCVMU-UHFFFAOYSA-N

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General description

Scandium(III) oxide is a high-melting rare earth oxide that can be used as a catalyst in the dehydration of terminal diols. Furthermore, it is used as a starting material for the preparation of other scandium compounds.

Application

Scandium(III) oxide can be used as a catalyst for the dehydration of amino alcohols to unsaturated amines. It can also be used as a precursor to prepare scandium(III) trifluoromethanesulfonate, which can be used to catalyze the nitration of aromatic compounds.
Suitable for vacuum deposition applications

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Dehydration of 5-amino-1-pentanol over rare earth oxides
Ohta K, et al.
Applied Catalysis A: General, 517, 73-80 (2016)
Scandium (III) trifluoromethanesulfonate catalyzed aromatic nitration with inorganic nitrates and acetic anhydride
Kawada A, et al.
Chemical & Pharmaceutical Bulletin, 50 (2002)
Vapor-phase catalytic dehydration of terminal diols
Abe K, et al.
Catalysis Today, 164, 419-424 (2011)
R Soulard et al.
Optics express, 18(11), 11173-11180 (2010-07-01)
We report on the measurements of near-UV excited-state absorption (ESA) spectra and refractive index changes (RICs) in the two ytterbium doped laser crystals Yb:Lu2O3 and Yb:Sc2O3. ESA is assigned to ligand-to-metal charge transfer (LMCT) absorption transitions and RICs to the
Ya-Wen Zhang et al.
The journal of physical chemistry. B, 109(39), 18324-18331 (2006-07-21)
Nanostructured scandium hydrous oxides were hydrothermally synthesized at 180 degrees C for 18 h, using NaOH, NH(4)OH, and KOH as the bases. They were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption, thermogravimetry and differential
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