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Scandium Oxide

Scandium Oxide

Category: Rare Earth Oxides

Formula Sc2O3
CAS No. 12060-08-1
Molecular Weight 137.91

Appearance White powder
Solubility Insoluble in water, moderately soluble in strong mineral acids
Stability Slightly hygroscopic


Application: Scandium oxide, also called Scandia, is suitable for the high index component of UV, AR and bandpass coatings due to its high index value, transparency, and layer hardness make high damage thresholds have been reported for combinations with silicon dioxide or magnesium fluoride for use in AR.

Standard Specifications

Grade 99.9999% 99.999% 99.99% 99.9%
CHEMICAL COMPOSITION        
Sc2O3/TREO (% min.) 99.9999 99.999 99.99 99.9
TREO (% min.) 99.9 99 99 99
Loss On Ignition (% max.) 0.5 1 1 1
Rare Earth Impurities % max. % max. % max. % max.
La2O3/TREO
CeO2/TREO
Pr6O11/TREO
Nd2O3/TREO
Sm2O3/TREO
Eu2O3/TREO
Gd2O3/TREO
Tb4O7 /TREO
Dy2O3 /TREO
Ho2O3/TREO
Er2O3/TREO
Tm2O3/TREO

Yb2O3/TREO
Lu2O3 /TREO
Y2O3/TREO
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0003
0.0003

0.0003
0.0003
0.0001
Totally 0.01 Totally 0.1
Non-Rare Earth Impurities % max. % max. % max. % max.
Fe
Si
Ca
Cu
Ni
Pb
Zr
Ti

0.0001
0.000
3
0.000
3
0.0001
0.0001
0.000
1
0.0001
0.0001

0.0001
0.000
5
0.000
5
0.0001
0.0001
0.000
1
0.0005
0.0005

0.001
0.005
0.005

0.005
0.02
0.01

 

Individual Rare earth including Lanthanum, Cerium, Neodymium, Praseodymium, Samarium, Europium, Gadolinium, Dysprosium, Terbium, Holmium, Erbium, Ytterbium, Lutetium, Thulium, Scandium and Yttrium.

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