Gadolinium Pellets

Formula: Gd

Form: Pellet/Lump

Material: Gadolinium

CAS Number: 7440-54-2

Commodity: Metals

Purity: 99.9%

Hazard Pictogram: GHS02

Gadolinium pellets are part of Goodfellow's range of metal pellets. Gadolinium has excellent neutron absorption and magnetic properties. The pellets can be used as control rods in nuclear reactors, absorbing neutrons and controlling the fission reaction. They are also utilized in magnetic resonance imaging (MRI) machines, where gadolinium's paramagnetism enhances the imaging contrast. Overall, gadolinium pellets from Goodfellow demonstrate useful nuclear and magnetic characteristics with applications in energy and medicine.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

Flammable

each

Tolerances

Pellet/Lump

Maximum Lump Size		Nominal

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	64
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f⁷ 5d¹ 6s²
Valences shown	3
Atomic weight( amu )	157.25
Thermal neutron absorption cross-section( Barns )	49000
Photo-electric work function( eV )	3.1
Natural isotope distribution( Mass No./% )	160/ 21.8
Natural isotope distribution( Mass No./% )	155/ 14.8
Natural isotope distribution( Mass No./% )	157/ 15.7
Natural isotope distribution( Mass No./% )	152/ 0.2
Natural isotope distribution( Mass No./% )	158/ 24.8
Natural isotope distribution( Mass No./% )	156/ 20.5
Natural isotope distribution( Mass No./% )	154/ 2.2
Atomic radius - Goldschmidt( nm )	0.18
Ionisation potential( No./eV )	2/ 12.1
Ionisation potential( No./eV )	1/ 6.14

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.26
Bulk modulus( GPa )	39.1
Tensile modulus( GPa )	56.2
Hardness - Vickers( kgf mm⁻² )	55
Tensile strength( MPa )	193
Yield strength( MPa )	179

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	134@20@20°C
Temperature coefficient( K⁻¹ )	0.00176@0-100°C

Physical Properties

Element	Value
Boiling point( C )	3266
Density( gcm⁻³ )	7.895@25°C

Thermal Properties

Element	Value
Melting point( C )	1313
Latent heat of evaporation( J g⁻¹ )	1920
Latent heat of fusion( J g⁻¹ )	98.7
Specific heat( J K⁻¹ kg⁻¹ )	230@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	10.5@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	6.4@0-100°C

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Gadolinium Pellets

Tolerances

Material Properties for Metals