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- Holmium (Ho) Metal Synonyms:
holmium metal powder, Ho, holmium metal lump, holmium metal pieces, holmium metal ingot, holmium metal foil, holmium metal wire, holmium metal rod, CAS # 7440-60-0, UN 3089
- Holmium (Ho) Metal Designations:
Chemical Name: Holmium
Chemical Formula: Ho
Pure holmium's luster is metallic to bright silver. The metal is relatively soft, malleable, and has unusual magnetic properties. While it oxidizes rapidly in moist air and at elevated temperatures, it is relatively stable in dry air at room temperature.
99.9% (REO basis)
Pieces & granules
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Atomic Number
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67
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Molecular Weight (g/mol.)
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164.930
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Apparent Density (g/cm3)
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8.78
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Poisson Ratio
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0.231
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Specific Heat @25°C (cal/g-°C)
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.039
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Melting Point (°C)
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1474
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Boiling Point (°C)
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2600
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Thermal Conductivity (300 K)
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16.2 W·m−1·K−1
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Surface Area (m2/g)
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pH
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Electrical Resistivity
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(r.t.) (poly) 814 nΩ·m
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Young's Modulus (GPa)
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64.8
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Crystallography
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hexagonal structure
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- Holmium (Ho) Metal Typical Applications:
1) Holmium has the highest magnetic strength of any element and therefore is used to create the strongest artificially-generated magnetic fields, when placed within high-strength magnets as a magnetic pole piece (also called a magnetic flux concentrator). Since it can absorb nuclear fission-bred neutrons, it is also used in nuclear control rods.
2) Holmium is used in yttrium-iron-garnet (YIG) and yttrium-lanthanum-fluoride (YLF) solid state lasers found in microwave equipment (which are in turn found in a variety of medical and dental settings). Holmium lasers emit at 2.08 microns and therefore are safe to eyes. They are used in medical, dental and fiber-optical applications.
3) Holmium is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. Glass containing holmium oxide and holmium oxide solutions (usually in perchloric acid) have sharp optical absorption peaks in the spectral range 200-900 nm. They are therefore used as a calibration standard for optical spectrophotometers and are available commercially.
Drums
Yes. For further information please call the E.P.A. at 202.554.1404
CAS# 7440-60-0
3089
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