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Y2O3(fluorescence-level)
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Rare Earth oxides |
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Yttrium, atomic no.: 39, symbol as Y, weight at 88.91, has the highest thermo-dynamic affinity for oxygen of any element, this characteristic is the basis for many of its applications. While not part of the rare earth series, it resembles the heavy rare earths which are sometimes referred to as the yttrics for this reason.
Another unique characteristic derives from its ability to form crystals with useful properties.
Some of the many applications of yttrium include in ceramics for crucibles for molten reactive metals, in florescent lighting phosphors, computer displays and automotive fuel consumption sensors.
Yttria stabilized zirconium oxide are used in high temperature applications, such as in thermal plasma sprays to protect aero***ce high temperature surfaces.
Crystals of the yttrium-iron-garnet (YIG) variety are essential to microwave communication equipment.
The phosphor Eu:Y2O2S creates the red color in televisions.
Crystals of the yttrium-aluminum-garnet (YAG) variety are utilized with neodymium in a number of laser applications.
Yttria can also increase the strength of metallic alloys.
Formula Y2O3
CAS No. 1314-36-9
Molecular Weight 225.81
Appearance White
Solubility Insoluble in water, moderately soluble in strong mineral acids
Stability Slightly hygroscopic
Yttrium Oxide, also called Yttria, high purity Yttrium Oxides are the most important materials for tri-bands Rare Earth phosphors which give the red colour in colour television & computer tubes. In optical industry, the Yttrium Oxide is used to produce yttrium-iron-garnets, which are very effective microwave filters. Low purity of Yttrium Oxide are widely applied in electronic ceramics.
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| Company: |
China Rare Earth Holdings Co.,Ltd
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| Contact: |
Mr. guo zhen |
| Address: |
Rm.G.H.8/F Zaofeng Universe Building,1800 Zhongshan Road W |
| Postcode: |
200233 |
| Tel: |
021-64400979 |
| Fax: |
021-64400978 |
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