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HOLMIUM
COMPOUNDS (Ho)
MATERIAL
OVERVIEW
Characteristics:
Crystalline solid with metallic luster. Reacts slowly
with water, soluble in dilute acids. Has one of the
highest nuclear moments of any rare earth. Important
magnetic and electrical properties. Low toxicity.
GENERAL
PROPERTIES
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Symbol:
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Ho
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Atomic
Number:
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67
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Atomic
Weight:
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164.9304
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Density:
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8.795
gm/cc
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Melting
Point:
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1474
oC
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|
Boiling
Point:
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2695
oC
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Thermal
Conductivity:
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0.162
W/cm/oK
@ 298.2 oK
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|
Electrical
Resistivity:
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87.0
microhm-cm @ 25 oC
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Electronegativity:
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1.2
Paulings
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|
Specific
Heat:
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0.0393
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
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67
K-Cal/gm atom at 2695 oC
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Heat
of Fusion:
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4.10
Cal/gm mole
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Thermal
Neutron Cross Section:
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64
Barns per Atom
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TYPICAL
ANALYSES
Impurities
in ppm
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Material
/ Purity:
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3N
|
|
Er
|
60
|
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Ca
|
10
|
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Y
|
10
|
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Mg
|
10
|
|
Fe
|
10
|
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Yb
|
10
|
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Ta
|
300
|
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Tm
|
10
|
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Dy
|
10
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Si
|
10
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Al
|
10
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Ni
|
10
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HOLMIUM
COMPOUNDS
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Material
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Purity
|
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Holmium
Chloride HoCl3-xH2O
-60 Mesh
|
3N
|
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Holmium
Chloride HoCl3
-60 Mesh
|
3N
|
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Holmium
Fluoride HoF3
1/4"-1/8" Pieces
|
3N
|
|
Holmium
Fluoride HoF3
-60 Mesh
|
3N
|
|
Holmium
Fluoride HoF3
-325 Mesh
|
3N
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Holmium
Nitride HoN -60 Mesh
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3N
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|
Holmium
Oxide Ho2O3
-325 Mesh
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3N,
5N
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Holmium
Oxide Ho2O3
1/2"-1/8" Pieces
|
3N
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Compounds
are packaged to order and sold by the gram or
kilogram.
For Holmium single crystals see “Single Crystals.”
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