| Classifications |
Properties |
Main Applications |
| Density(g/cm3) |
Melting Point (℃) |
Boiling Point (℃) |
Standard Atomic Weight(g/mol) |
| Scandium (Sc) |
2.985 |
1541 |
2836 |
44.956 |
- For high strength aluminum alloy
- For scandium halide compounds
- Aircraft Parts
|
| Yttrium (Y) |
4.45 |
1526 |
3336 |
88.9059 |
- Alloy material in the metal state
- High-temperature superconductor
- Red phosphorus, special glass
- Chemical catalyst
- Electromagnetic wave filter, laser
|
| Lanthanum (La) |
6.16 |
920 |
3464 |
138.9055 |
- Nickel-hydrogen battery
- Special glass
- Carbon arc
- Hydrogen storage alloy
- Steel alloy
- Chemical catalyst
- Medicine
|
| Cerium (Ce) |
6.77 |
795 |
3443 |
140.116 |
- Oxide alloy
- Glass abrasive
- Colorants and chemical reagents Industrial catalyst
- Phosphor
- Laser
|
| Praseodymium (Pr) |
6.77 |
935 |
3520 |
140.9077 |
- Coloring agent
- Welding safety glasses
- High strength alloys for aircraft engines
- Carbon alloy
|
| Neodymium (Nd) |
7.01 |
1024 |
3074 |
144.242 |
- High-strength magnet Infrared solid-state laser glasswork
|
| Promethium (Pm) |
7.26 |
1042 |
3000 |
145 |
- Thickness meter
- Signal light source
- Nuclear battery
- Radiation-emitting paint
- X-ray generator
|
| Samarium (Sm) |
7.52 |
1072 |
1794 |
150.36 |
- Samarium-Cobalt Magnet Additive
- Special optical glass
- Chemical catalysts and reagents
|
| Europium(Eu) |
5.234 |
826 |
1527 |
151.964 |
- Laser crystal High-refraction glass
|
| Gadolinium (Gd) |
7.9 |
1313 |
3273 |
157.25 |
- Contrast agent for MRI
- Neutron blocker
- Optical material
- Emergency Stop Phosphor
- Computer Memory
- Microwave generator
|
| Terbium (Tb) |
8.229 |
1356 |
2560 |
162.5 |
- Fluorescent material
- Green phosphor
- Magnetostrictive element
- Electronic device
- High temperature fuel cell
- Neodymium magnet addtitive
|
| Dysprosium (Dy) |
8.55 |
1407 |
2560 |
162.5 |
- Neodymium magnet additive
- Reactor control rod
- Magnetostricitive alloy
- HD data storage material
- Halogenated metal lamp laser
|
| Holmium (Ho) |
8.795 |
1470 |
2700 |
164.9303 |
- Medical laser
- Wavelength correction standard of spectroscope
- Colorants of glass and cubic zirconia
|
| Erbium (Er) |
9.066 |
1529 |
2868 |
167.259 |
- Medical laser Glass and porcelain colorants
- Vanadium alloy
- Reactor control rod
|
| Thulium (Tm) |
6.97 |
824 |
1196 |
173.05 |
- Infrared solid-state laser glasswork
|
| Ytterbium (Yb) |
6.97 |
824 |
1196 |
173.05 |
- High power laser
- Steel alloy
- X-ray source
- Fiber optic amplifier
- Chemical catalyst
|
| Lutetium (Lu) |
9.84 |
1663 |
3400 |
174.9668 |
- Petrochemical catalyst
- Positron tomography detectro
- Laser crystal
- High-refraction glass
|
