Rare earth elements are a group of seventeen chemical elements that appear together. This group consists of yttrium and 15 lanthanide elements (lanthanum, cerium, neodymium, pro, sa, ... th and th). Most are found in most rare earth element deposits and are sometimes classified as rare earth elements. The International Union of Pure and Applied Chemistry includes sodium in its definition of rare earth elements.
Rare earth elements are metals, and this group is often referred to as "rare earth metals". These metals have many similar properties, which usually cause them to be found together in geological sediments. They are also called "rare earth oxides" because many of them are usually sold as oxides.
Application of rare earth elements
Rare earth elements containing rare earth metals and alloys are used in many devices that people use every day, such as computer memory, DVDs, rechargeable batteries, mobile phones, catalytic converters, magnets, fluorescent lamps, etc.
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CAS: 12060-58-1Molecular Formula: Sm2O3Purity: 99.9%-99.999 %Products Code: 620800PDSpecification Model: -100-325 mesh.etcEINECS No.: 235-043-6
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CAS: 13842-67-6Molecular Formula: Tb2(SO4)3Purity: 99.99%Products Code: 65160800PDSpecification Model: -100-325 meshEINECS No.: 634-368-4
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CAS: 7440-64-4Molecular Formula: YbPurity: 99.9%Products Code: 7000FISpecification Model: 50 mm x 50 mm x 0.25 mm.etcHazardous Class: Class 4.1EINECS No.: 231-173-2UN No.: UN3089Package Class: PGII
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CAS: 7440-27-9Molecular Formula: TbPurity: 99.9%(Ta <0.4%)Products Code: 6500IGSpecification Model: 36mm (1.4in) dia x 8mm (0.3in) thickHazardous Class: Class 4.1EINECS No.: 231-137-6UN No.: UN3178Package Class: PG II
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CAS: 12063-56-8Molecular Formula: Y3Fe5O12Purity: 99.9%Products Code: 39260800PDSpecification Model: 200 - 1000 nmEINECS No.: 235-053-0
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CAS: 13760-79-7Molecular Formula: TmF3Purity: 99.9%Products Code: 690900CRSpecification Model: -100 meshHazardous Class: Class 6.1EINECS No.: 237-353-7UN No.: UN 3288Package Class: PG III
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CAS: 12003-65-5Molecular Formula: LaAlO3Purity: 99.99%Products Code: 57130800SSSpecification Model: 10x10x0.5mmHazardous Class: NO