Rare Earth
EPI Carries a Full Line of Rare Earth Products, Which Are Also Available in Various Specifications
EPI Materials is a trusted supplier and manufacturer of high-quality Rare Earth products, including Metals, Oxide powder, and other customized products.
Various purities are available upon request. Examples of the type of products we supply are shown below but this is by no means a definitive list, if you want an item that’s not here please contact us.
Lanthanum (La)
Lanthanum (La) is used in camera and telescope lenses. Compounds containing lanthanum are used extensively in carbon lighting applications, such as studio lighting and cinema projection.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME57 | Lanthanum Metal | 7439-91-0 | La | 99%; 99,9%; 99.99%; 99.999% (REM) | P; PL; I; ST |
| OX57 | Lanthanum Oxide | 1312-81-8 | La2O3 | 99.99%; 99.999% (REO) | P; ST |
| CL57 | Lanthanum Chloride | 20211-76-1 | LaCl3·xH2O | 99%; 99,9%; 99.99%; 99.999% (REO) | C |
| FL57 | Lanthanum Fluoride | 13709-38-1 | LaF3 | 99.9% (REO) | P |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Cerium
Cerium is used in catalytic converters in cars, enabling them to run at high temperatures and playing a crucial role in the chemical reactions in the converter. Lanthanum and cerium are also used in the process of refining crude oil.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME58 | Cerium Metal | 7440-45-1 | Ce | 99%; 99,9% (REM) | P; PL; I; ST |
| OX58 | Cerium Oxide | 1306-38-3 | CeO2 | 99%; 99.9%; 99.99% (REO) | P; ST |
| CL58 | Cerium Chloride | 7790-86-5 | CeCl3 | 99%; 99.9%; 99.99% (REO) | P |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Praseodymium
Praseodymium is used to create strong metals for use in aircraft engines. Praseodymium is also a component of a special sort of glass, used to make visors to protect welders and glassmakers.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME59 | Praseodymium Metal | 7440-10-0 | Pr | 99%; 99,9% (REM) | P; PL; I; ST |
| OX59 | Praseodymium Oxide | 12037-29-5 | Pr6O11 | 99%; 99,9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Neodymium
Neodymium is used to make powerful magnets used in loudspeakers and computer hard drives to enable them to be smaller and more efficient. Magnets containing neodymium are also used in green technologies such as the manufacture of wind turbines and hybrid cars.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME60 | Neodymium Metal | 7440-00-8 | Nd | 99%; 99,9%; 99.99%; 99.999% (REM) | P; PL; I; ST |
| OX60 | Neodymium Oxide | 1313-97-9 | Nd2O3 | 99%; 99,9%; 99.99%; 99.999% (REO) | P; ST |
| CL60 | Neodymium Chloride | 10024-93-8 | NdCl3 | 99.9%; 99.99% (REO) | P |
| FL60 | Neodymium Fluoride | 13709-42-7 | NdF3 | 99%; 99.9% (REO) | P |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Samarium
Samarium is a silvery metal belonging to the lanthanide group of the periodic table. It slowly oxidizes at room temperature and has a relatively stable oxidation state like europium.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME62 | Samarium Metal | 7440-19-9 | Sm | 99%; 99,9% (REM) | P; PL; I; ST |
| OX62 | Samarium Oxide | 12060-58-1 | Sm2O3 | 99.9%, 99.99% (REO) | P; ST |
| FL62 | Samarium Fluoride | 113765-24-7 | SmF3 | 99%; 99.9%; 99.99% (REO) | P |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Europium
Europium is a ductile silvery metal belonging to the lanthanide group of the periodic table. It is the most reactive one of the rare earth elements. Commercial applications of europium are very few. It is excellent at absorbing neutrons, so it is used in control rods for nuclear reactors. Europium-doped plastic is often used as a laser material.
Europium has abundant forms of compounds. Europium oxide (Eu2O3) is widely used as a red phosphor in television or fluorescent lamp and as an activator for yttrium-based phosphors.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME63 | Europium Metal | 7440-53-1 | Eu | 99%; 99,9% (REM) | P; PL; I; ST |
| OX63 | Europium Oxide | 1308-96-9 | Eu2O3 | 99.9%, 99.99% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Gadolinium
Gadolinium is used in X-ray and MRI scanning systems, and also in television screens. Research is also being done into its possible use in developing more efficient refrigeration systems.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME64 | Gadolinium Metal | 7440-54-2 | Gd | 99%; 99,9% (REM) | P; PL; I; ST |
| OX64 | Gadolinium Oxide | 12064-62-9 | Gd2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Terbium
Terbium is rare and expensive, so it has few commercial uses. It is mainly used to dope calcium fluoride, calcium tungstate and strontium molybdate, materials that are used in solid-state devices. When together with zirconium dioxide (ZrO2), terbium is used as a crystal stabilizer in fuel cells that operate at high temperatures. It is also used in lasers, semiconductor devices, and phosphorous in color television tubes.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME65 | Terbium Metal | 7440-27-9 | Tb | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX65 | Terbium Oxide | 12037-01-3 | Tb4O7 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Dysprosium
Dysprosium metal has no commercial applications. It might be used to alloy with other elements to make laser materials. It also can be used in alloys for neodymium-based magnets as a substitute of neodymium.
Dysprosium forms several brightly colored compounds. Dysprosium oxide (Dy2O3, or dysprosia) is add in special cement which is used to cool nuclear reactor rods.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME66 | Dysprosium Metal | 7429-91-6 | Dy | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX66 | Dysprosium Oxide | 1308-87-8 | Dy2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Holmium
Holmium is used in alloys to create the strongest generated magnetic fields because of its high magnetic strength. As it can absorb neutrons, holmium also can be used in nuclear reactors.
Among holmium compounds, holmium oxide (Ho2O3, holmia) is often used as a yellow or red colorants for glass and cubic zirconia.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME67 | Holmium Metal | 7440-60-0 | Ho | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX67 | Holmium Oxide | 12055-62-8 | Ho2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Erbium
Erbium is commonly used as a photographic filter. It is also used to alloy with metals to lower the hardness and improve the workability. Erbium isotopes are good neutron absorbers so they are used in nuclear reactor control rods.
Erbium compounds are rose-colored, and have excellent absorption spectra bands in visible light, ultraviolet, near infrared. Erbium oxide (Er2O3, erbia) has a pink color, and is often used in infrared absorbing glass or coloring glasses.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME68 | Erbium Metal | 7440-52-0 | Er | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX68 | Erbium Oxide | 12061-16-4 | Er2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Thulium
Thulium metal is rare and expensive, so it almost has no commercial applications. Holmium-chromium-thulium triple-doped Yttrium aluminum garnet (Ho:Cr:Tm:YAG, or Ho,Cr,Tm:YAG) is an active laser medium material with high efficiency. Thulium isotopes can be used as a X-ray source.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME69 | Thulium Metal | 7440-30-4 | Tm | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX69 | Thulium Oxide | 12036-44-1 | Tm2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Ytterbium
Ytterbium can be alloyed with stainless steel to improve its mechanical properties and used as a doping agent in ceramic capacitors and other electronic devices. Ytterbium isotopes are being used as a radiation source for portable X-ray machines. Ytterbium compounds are also used as catalysts in chemical industry.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME70 | Ytterbium Metal | 7440-64-4 | Yb | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX70 | Ytterbium Oxide | 1314-37-0 | Yb2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Lutetium
Lutetium is one of the most difficult elements to prepare therefore it has very few commercial uses. It can be used as catalysts for cracking hydrocarbons in the petrochemical industry. Lutetium isotopes are used to determine the meteorites’ age and as a pure beta emitter, using lutetium which has been exposed to neutron activation.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME71 | Lutetium Metal | 7439-94-3 | Lu | 99.9%; 99.99% (REM) | P; PL; I; ST |
| OX71 | Lutetium Oxide | 12032-20-1 | Lu2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Scandium
Scandium (Sc) is a silvery-white metallic transition metal, often classified as a rare earth element (REE), together with yttrium (Y) and the 15 lanthanides (La).
Scandium (Sc) is a key ingredient in the new solid oxide fuel cell market, and in lighting and aerospace components.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME21 | Scandium Metal | 7440-20-2 | Sc | 99,9%; 99.99%; 99.999% (REM) | P; PL; I; ST |
| OX21 | Scandium Oxide | 12060-08-1 | Sc2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline
Yttrium
Yttrium is a silvery-metallic transition metal, similar to the lanthanides. It is found in most rare-earth minerals.
The most important use of yttrium is in making phosphors. Yttrium oxide (Y2O3) and yttrium orthovanadate (YVO4) are both combined with europium to produce the red phosphor used in televisions set cathode ray tube (CRT) displays and in LEDs. Yttrium is also used as an additive in alloys to increases the strength of aluminium and magnesium alloys.
| Item No. | Product | CAS No. | Chemical Formula | Purity | Form* |
|---|---|---|---|---|---|
| ME39 | Yttrium Metal | 7440-65-5 | Y | 99%; 99,9% (REM) | P; PL; I; ST |
| OX39 | Yttrium Oxide | 1314-36-9 | Y2O3 | 99.9%; 99.99%; 99.999% (REO) | P; ST |
*P=Powder, ST=Sputtering Target, I=Ingot, PL=Pellet, S=Sheet, F=Foil, C=Crystalline