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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

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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)
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
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
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