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Lanthanum Oxide
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3n 4n 4n5 5n 3-5um 5-8um Lanthanum Oxide Powder CAS 1312-81-8 La2O3
| Product Name | Lanthanum Oxide Powder |
| Formula | La2O3 |
| CAS No. | 1312-81-8 |
| EINECS | 215-200-5 |
| Appearance | White powder |
| physical property | |
| Appearance and properties | White solid powder. |
| Density | 6.51 g/mL at 25 ° C |
| Melting point | 2315 ° C |
| Boiling point | 4200 ° C |
Solubility: Soluble in acids and ammonium chloride, insoluble in water and ketones.
Lanthanum (III) oxide (99..9% La) (REO); Lanthanum (III) oxide (99.999 La) (REO) PURATREM; LanthanumoxideREOwhitepowder; LanthanumoxidePURATREM; Lanthanum(III) oxide; lanthanum(+3) cation; oxygen(-2) anion
|
Items |
Grade |
||||||
|
La2O3/REO %min |
99.999 |
99.995 |
99.99 |
99.9 |
99.5 |
99.0 |
|
|
Rare earth impurities REO |
CeO2 |
0.0002 |
0.0005 |
0.0015 |
0.005 |
0.05 |
0.5 |
|
Pr6O11 |
0.0002 |
0.0005 |
0.0015 |
0.005 |
0.01 |
0.10 |
|
|
Nd2O3 |
0.0002 |
0.0005 |
0.0010 |
0.0010 |
0.01 |
0.1 |
|
|
Sm2O3 |
0.0002 |
0.0005 |
0.0010 |
0.001 |
0.01 |
0.01 |
|
|
Y2O3 |
0.0003 |
0.0010 |
0.0010 |
0.005 |
0.005 |
0.1 |
|
|
Non rare earth impurities |
Fe2O3 |
0.0002 |
0.0003 |
0.0005 |
0.001 |
0.005 |
0.010 |
|
SiO2 |
0.0030 |
0.0050 |
0.0050 |
0.010 |
0.050 |
0.050 |
|
|
CaO |
0.0010 |
0.0050 |
0.0050 |
0.010 |
0.050 |
0.10 |
|
|
CuO |
0.0002 |
0.0002 |
0.0005 |
— |
— |
— |
|
|
NiO |
0.0002 |
0.0002 |
0.0005 |
— |
— |
— |
|
|
PbO |
0.0010 |
0.0020 |
0.0050 |
— |
— |
— |
|
|
Cl— |
0.02 |
0.03 |
0.03 |
0.03 |
0.05 |
0.05 |
|
Lanthanum oxide is a chemical substance, and its Molecular formula is La2O3. Slightly soluble in water, easily soluble in acid, easy to absorb carbon dioxide and water when exposed to air, mainly used for manufacturing precision optical glass and Optical fiber.
Its chemical properties are slightly soluble in water and easily soluble in acids, resulting in the formation of corresponding salts. Exposed in the air, it is easy to absorb carbon dioxide and water, and gradually becomes Lanthanum carbonate. The burned Lanthanum oxide combines with water to release a lot of heat.
Usually, products are added with polymerization inhibitors. Store in a cool and ventilated warehouse. Keep away from sparks and heat sources. The temperature of the warehouse should not exceed 30 ℃. The packaging requires sealing and must not come into contact with air. It should be stored separately from oxidants, acids, alkalis, etc. and should not be mixed for storage. Using explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to sparks. The storage area should be equipped with emergency response equipment for leaks and suitable storage materials.
Lanthanum oxide is mainly used to manufacture precision optical glass and optical fiber. It is also used in electronic industry as ceramic capacitor and piezoelectric ceramic admixture. It is also used as raw material for preparing lanthanum borate and catalyst for petroleum separation and refining
Lanthanum oxide is an inorganic compound with the chemical formula La2O3, which is a white powder. Soluble in acid, ethanol, ammonium chloride, insoluble in water and ketone. Rare earth lanthanum oxide is widely used, especially in glass, ceramics, electronics and other fields play an important role..
Uses: Mainly used in the manufacture of precision optical glass, optical fiber. Also used in the electronics industry as ceramic capacitors, piezoelectric ceramic doping agent. It is also used as a raw material for the preparation of lanthanum boride, and as a catalyst for petroleum separation and purification.
Applications: Mainly used for the manufacture of special alloy precision optical glass, high-refractive optical fiber board, suitable for cameras, cameras, microscope lenses and advanced optical instrument prisms, etc. It is also used in the manufacture of ceramic capacitors, piezoelectric ceramic dopants and X-ray luminescent materials such as lanthanum oxybromide powder. It is extracted from lanthanum lanthanum ore or obtained by burning lanthanum carbonate or lanthanum nitrate. It can also be obtained by thermal decomposition of lanthanum oxalate. It is used as a catalyst for various reactions, such as catalyzing the oxidation reaction of carbon monoxide when doped with cadmium oxide, and catalyzing the hydrogenation of carbon monoxide to form methane when doped with palladium. Lanthanum oxide impregnated with lithium oxide or zirconium oxide (1%) can be used to make ferrite magnets. It is a very efficient selective catalyst for the oxidative coupling of methane to ethane and ethylene. It is used to improve the temperature dependence and dielectric properties of barium titanate (BaTiO3) and strontium titanate (SrTiO3) ferroelectrics, and to manufacture fiber optics and optical glass.
Made of special alloys used in the manufacture of precision optical glass, high refractive optical fiber, suitable for cameras, camera, microscope lens and advanced optical instruments prism. Also used in the manufacture of ceramic capacitors, piezoelectric ceramics dopants and X-ray emitting material bromine lanthanum oxide powder. Used as a catalyst for many, for improving barium titanate (BaTiO3), strontium titanate temperature (SrTiO3) dependence of ferroelectric and dielectric properties, and the manufacture of fiber optics and optical glass.
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