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- Erbium (Er) Metal Synonyms:
Erbium metal rare earth metal powder, Er, erbium metal powder, erbium metal lump, erbium metal pieces, erbium metal ingot, erbium metal foil, erbium metal rod , CAS# 7440-52-0
- Erbium (Er) Metal Designations:
Chemical Name: Erbium
Chemical Formula: Er
- Erbium (Er) Metal Description:
Erbium metal is soft, malleable, bright, and silvery. It does not oxidize as rapidly as some of the other rare earth metals as it is fairly stable in air. Erbium has an high electrical resistivity. As with other rare earth metals, properties depend on the impurities present. Naturally occurring erbium is a mixture of six stable isotopes.
- Erbium (Er) Metal Chemical Properties Available:
99.9% (REO basis)
- Erbium (Er) Metal Physical Properties Available:
Pieces & granules
- Erbium (Er) Metal Physical Constants:
| Atomic Number |
68 |
| Molecular Weight (g/mol.) |
167.26 |
| Apparent Density (g/cm3) |
9.05 |
| Crystal Structure |
Hexagonal |
| Specific Heat @25°C (cal/g-°C) |
.040 |
| Melting Point (°C) |
1529 |
| Boiling Point (°C) |
2900 |
| Surface Area (m2/g) |
|
| Thermal Conductivity (cal/s-cm-°C) |
.023 |
| Magnetic Ordering (at 300 K) |
Paramagnetic |
| Electrical Resistivity ((r.t.) poly) |
0.860 µΩ·m |
| Thermal Conductivity (at 300 K) |
14.5 W·m−1·K−1 |
| Crystallography |
hexagonal structure |
- Erbium (Er) Metal Typical Applications:
a) Erbium's everyday uses are varied. It is commonly used as a photographic filter, and because of its resilience it is useful as a metallurgical additive. Other uses:
b) Used in nuclear technology as a nuclear poison, as in neutron-absorbing control rods.
c) When added to vanadium as an alloy, erbium lowers hardness and improves workability.
d) Erbium oxide has a pink color, and is sometimes used as a colorant for glass, cubic zirconia and porcelain. The glass is then often used in sunglasses and cheap jewelry.
e) Erbium-doped optical silica-glass fibers are the active element in erbium-doped fiber amplifiers (EDFAs), which are widely used in optical communications. The same fibers can be used to create fiber lasers. Co-doping of optical fiber with Er and Yb is used in high-power Er/Yb fiber lasers, which gradually replace CO2 lasers for metal welding and cutting applications. Erbium can also be used in erbium-doped waveguide amplifiers.
f) An erbium-nickel alloy Er3Ni has an unusually high specific heat capacity at liquid-helium temperatures and is used in cryocoolers; a mixture of 65% Er3Co and 35% Er0.9Yb0.1Ni by volume improves the specific heat capacity even more.
- Erbium (Er) Metal Packaging Options:
Drums
- Erbium (Er) Metal TSCA (SARA Title III) Status:
Listed. For further information please call the E.P.A. at +1.202.554.1404
- Erbium (Er) Metal Chemical Abstract Service Number:
CAS# 7440-52-0
- Erbium (Er) Metal UN Number:
3089
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