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Formula: Na
Form: Pellet/Lump
Material: Sodium
CAS Number: 7440-23-5
Commodity: Metals
Maximum Lump Size: 200mm
Hazard Pictogram: GHS02, GHS05
Sodium Sticks are a form of metallic sodium supplied by Goodfellow as part of their range of sodium products. The sodium pellets have a lustrous, silvery appearance and are soft enough to be cut with a knife. Their low melting point of 97.8°C and high reactivity make sodium useful for chemical synthesis and as a heat transfer fluid. Sodium pellets can also be used to produce sodium vapour lamps and as a reactant in sodium-cooled fast neutron nuclear reactors. With minimal oxidation and high purity, Goodfellow's sodium sticks provide an effective source of elemental sodium for research and industrial applications.
Technical Data Sheet Safety Data Sheet Tolerance Properties

Flammable

Corrosive

each

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Tolerances

Pellet/Lump
Maximum Lump Size Nominal

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 11
Crystal structure Body centred cubic
Electronic structure Ne 3s¹
Valences shown 1
Atomic weight( amu ) 22.99
Thermal neutron absorption cross-section( Barns ) 0.54
Photo-electric work function( eV ) 212
Atomic radius - Goldschmidt( nm ) 0.192
Ionisation potential( No./eV ) 4/ 98.91
Ionisation potential( No./eV ) 5/ 138.39
Ionisation potential( No./eV ) 3/ 71.64
Ionisation potential( No./eV ) 1/ 5.14
Ionisation potential( No./eV ) 6/ 172.15
Ionisation potential( No./eV ) 2/ 47.30
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 4.9@27@27°C
Temperature coefficient( K⁻¹ ) 0.0055@0-100°C
Physical Properties
Element Value
Boiling point( C ) 883
Density( gcm⁻³ ) 0.97@20°C
Thermal Properties
Element Value
Melting point( C ) 97.8
Latent heat of evaporation( J g⁻¹ ) 4260
Latent heat of fusion( J g⁻¹ ) 113
Thermal conductivity( W m⁻¹ K⁻¹ ) 128@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 71@0-100°C

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