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Formula: Ga
Form: Pellet/Lump
Material: Gallium
CAS Number: 7440-55-3
Commodity: Metals
Maximum Lump Size: 25mm
Melting Point: 29.8°C
Gallium Pellets are high-purity metallic units notable for their low melting point (29.8 °C), metallic luster, and ability to wet and amalgamate with many metals. They maintain excellent electrical and thermal conductivities, coupled with low toxicity and negligible vapor pressure, making them a safer alternative to mercury in multiple applications. In materials science, their fluidic-metallic nature enables alloying with indium or tin for eutectic systems used in thermally conductive interfaces, flexible electronics, and precision wetting processes. In biomedical engineering, gallium pellets are precursors for gallium-based liquid metal particles applied in drug delivery, cancer treatment, and bioimaging, benefiting from their self-healing oxide skin and stimulus-responsive behavior. They are also utilized in catalysis and semiconductor doping where controlled purity and shape influence process efficiency. In both research and industrial contexts, gallium pellets remain vital for innovation in electronics, microfabrication, advanced composites, and next-generation medical devices.

Corrosive

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Tolerances

Pellet/Lump
Maximum Lump Size Nominal

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 31
Crystal structure Orthorhombic
Electronic structure Ar 3d¹⁰ 4s² 4p¹
Valences shown 2, 3
Atomic weight( amu ) 69.72
Thermal neutron absorption cross-section( Barns ) 3.1
Photo-electric work function( eV ) 4.2
Natural isotope distribution( Mass No./% ) 71/ 40
Natural isotope distribution( Mass No./% ) 69/ 60
Atomic radius - Goldschmidt( nm ) 0.135
Ionisation potential( No./eV ) 4/ 64.0
Ionisation potential( No./eV ) 2/ 20.51
Ionisation potential( No./eV ) 1/ 5.99
Ionisation potential( No./eV ) 3/ 30.71
Mechanical Properties
Element Value
Hardness - Mohs 1.5-2.5
Material condition Polycrystalline
Poisson's ratio 0.47
Tensile modulus( GPa ) 9.81
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 15.5@20@20°C
Superconductivity critical temperature( K ) 1.08
Temperature coefficient( K⁻¹ ) 0.004@0-100°C
Physical Properties
Element Value
Boiling point( C ) 2205
Density( gcm⁻³ ) 5.904@20°C
Thermal Properties
Element Value
Melting point( C ) 29.8
Latent heat of evaporation( J g⁻¹ ) 3984
Latent heat of fusion( J g⁻¹ ) 80.1
Specific heat( J K⁻¹ kg⁻¹ ) 330@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 33-41@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 18.3@0-100°C

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