Erbium
MATERIAL OVERVIEW
Characteristics: Erbium metal slowly tarnishes in moist air but is more stable and does not oxidize as quickly as some other rare-earth metals. Insoluble in water, soluble in acids. Erbium salts are pink, and the element has characteristic sharp absorption spectra bands in visible light, ultraviolet, and near infrared. Low toxicity and high electrical resistivity.
Derivation: Acids are used on crushed minerals that transform insoluble rare-earth oxides into chlorides or sulfates. The filtrates are partially neutralized with caustic soda then a process is used to convert rare earths into their insoluble oxalates. By annealing the oxalates are converted to oxides, then dissolved by acid. A crystallized mixture of double salts of rare-earth metals is formed and the salts are separated by ion exchange. Eventually the rare earths are washed out by a suitable complexing agent and erbium metal is obtained by a heating process with calcium at 1450 °C under an argon atmosphere.
Erbium has been used in nuclear technology as a neutron absorber in control rods; as an alloying agent with metals such as vanadium to lower hardness and increase workability; erbium salts are used as a colorant for glass and porcelain; as a dopant in optical fiber amplifiers.
Hazards: Slightly toxic if ingested. Metallic erbium is flammable in the form of dust when exposed to an ignition source. Contact with acids may evolve flammable hydrogen gas.
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GENERAL PROPERTIES
Symbol: |
Er |
Atomic Number: |
68 |
Atomic Weight: |
167.26 |
Density: |
9.066 gm/cc |
Melting Point: |
1529 oC |
Boiling Point: |
2863 oC |
Thermal Conductivity: |
0.145 W/cm/K @ 298.2 K |
Electrical Resistivity: |
107.0 microhm-cm @ 25 oC |
Electronegativity: |
1.2 Paulings |
Specific Heat: |
0.0401 Cal/g/K @ 25 oC |
Heat of Vaporization: |
67 K-Cal/gm atom at 2863 oC |
Heat of Fusion: |
4.10 Cal/gm mole |
Thermal Neutron Cross Section: |
166 Barns per Atom |
Magnetic Susceptibility: |
300x10-6 Emu @ Room Temp |
Magnetic Moment: |
10.0 Bohr Magnetons |
Temperature Coefficient of Resistance: |
0.002001 @ 0 oC to Room Temp
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TYPICAL ANALYSES - Impurities in ppm
Material / Purity: |
3N REO |
Dy | 10 |
Tm | 3 |
Yb | 5 |
Y | 650 |
Al | 100 |
Fe | 700 |
Mg | 52 |
Ni | 31 |
Si | 47 |
C | 10 |
ERBIUM ROD
Material |
Purity |
Erbium Rod .250” | 3N |
Erbium Rod .500” | 3N |
Rod is made to order and sold by the inch. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters or custom sizes.
ERBIUM FOIL
Foil is made to order and sold by the square inch. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional thicknesses or custom sizes.
ERBIUM SHEET
Material |
Purity |
Erbium Sheet .010” |
3N |
Erbium Sheet .020" | 3N |
Erbium Sheet .024" | 3N |
Erbium Sheet .040" | 3N |
Erbium Sheet .050" | 3N |
Erbium Sheet .125 | 3N |
Sheet is made to order and sold by the square inch. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional thicknesses or custom sizes.
ERBIUM SPUTTERING TARGETS
Material |
Purity |
Erbium Sputtering Target 2"D X .125"T | 3N |
Erbium Sputtering Target 2"D X .250"T | 3N |
Erbium Sputtering Target 3"D X .125"T | 3N |
Erbium Sputtering Target 3"D X .250"T | 3N |
Erbium Sputtering Target 4"D X .125"T | 3N |
Erbium Sputtering Target 4"D X .250"T | 3N |
Targets are made to order and packaged individually. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters, thicknesses or custom sizes.
ERBIUM POWDER & INGOT
Material |
Purity |
Erbium Chips | 3N |
Erbium Ingot | 3N |
Erbium Powder -40 Mesh, Under Oil | 3N |
Erbium Powder -40 Mesh, Ampoules Under Dry Argon | 3N |
Erbium Powder -40 Mesh, Cans Under Dry Argon | 3N |
Powder, pieces, and ingots are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.
ERBIUM COMPOUNDS
Material |
Purity |
Erbium Boride ErB6 -40 Mesh |
3N |
Erbium Fluoride ErF3 Pieces | 3N |
Erbium Oxide Er2O3 -325 Mesh | 3N, 4N |
Erbium Oxide Er2O3 1/2" to 1/8" Pieces | 4N5 |
Erbium Sulfate | 3N |
Compounds are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.
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