06/26/2018

Europium Oxide

Europium oxide is white powder, which is a kind of rare earth oxides. it is of NaCl type structure and stable in dry or moisture air. It is insolube in water and alkali solution. However dissolve in inorganic acid( except HF and H3PO4), which form corresponding salts. Europia absorb CO2 and moist in air and form subcarbonate salt.

Europium Oxide 

CAS No.:1308-96-9 EINECS No.:215-165-6 Molecular Formula:Eu2O3 Molecular Formula:351.93
Melting Point:2350℃ Boiling Point:3790℃ Density:7.42 Eu2O3/REO:99.9%

Applications

Europium(III) oxide is raw material for fluorescent powder. It is for color cathode ray tube,  colour TV kinescope, computer display, three band fluorescent lamp and new long-lasting displayer. It is also raw material for stimulated luminescent powder of new X-ray medical diagnositc system.

Europia apply to make colored lens, opitcal filter, magnetic bubble storage device. It is also important for  control materials, shielding material and structural material in atomic reactor.

Europium trioxide is mainly for fluorescent powder of  colored TV, terminal display, X-ray intensifying screen and fluorescent lamp. It is also pigment for glasses. It can make glass reddish orange and radiation protective glass. Europia is additive for silica fiber.

Europium trioxide is activating agent for many phosphors, as Eu3+ for colorimetric tube Y2O3 or Y2O2S, high pressure mercury lamp YVO4.

Europia apply as neutron absorber in nuclear industry.