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1050 Aluminum Foil (Light Tight)

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Commodity: Metals Material: Aluminum Form: Foil (Light Tight) Grade: 1050 Composition: Al CAS Number: 7429-90-5 Purity: 99.5% Opacity: Light Tight
1050 Aluminum Foil (Light Tight) is used in optical experiments, photomultiplier tube shielding, and light-sensitive material storage due to its high opacity and reflectivity. Its high thermal conductivity enables effective heat dissipation in cryogenic insulation and thermal shielding within vacuum chambers and controlled-environment research enclosures. The foil’s purity and corrosion resistance make it suitable for use in laboratory cleanroom environments and chemical containment. It conforms easily around irregular shapes, providing reliable light exclusion in scientific enclosures. These properties support its use in R&D applications across photonics, vacuum systems, and precision instrumentation.
Starting at $319.00 each
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Material Properties

Atomic Properties
Element Value
Atomic number 13
Crystal structure Face centred cubic
Electronic structure Ne 3s² 3p¹
Valences shown 3
Atomic weight( amu ) 26.98154
Thermal neutron absorption cross-section( Barns ) 0.232
Photo-electric work function( eV ) 4.2
Atomic radius - Goldschmidt( nm ) 0.143
Ionisation potential( No./eV ) 4/ 120
Ionisation potential( No./eV ) 5/ 154
Ionisation potential( No./eV ) 6/ 190
Ionisation potential( No./eV ) 1/ 5.99
Ionisation potential( No./eV ) 3/ 28.4
Ionisation potential( No./eV ) 2/ 18.8
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.345
Poisson's ratio 0.345
Bulk modulus( GPa ) 75.2
Bulk modulus( GPa ) 75.2
Tensile modulus( GPa ) 70.6
Tensile modulus( GPa ) 70.6
Hardness - Vickers( kgf mm⁻² ) 21
Hardness - Vickers( kgf mm⁻² ) 35-48
Tensile strength( MPa ) 130-195
Tensile strength( MPa ) 50-90
Yield strength( MPa ) 110-170
Yield strength( MPa ) 10‑35
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 2.67@20°C
Superconductivity critical temperature( K ) 1.175
Temperature coefficient( K⁻¹ ) 0.0045@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.42
Physical Properties
Element Value
Boiling point( C ) 2467
Density( gcm⁻³ ) 2.7@20°C
Thermal Properties
Element Value
Melting point( C ) 660.4
Latent heat of evaporation( J g⁻¹ ) 10800
Latent heat of fusion( J g⁻¹ ) 388
Specific heat( J K⁻¹ kg⁻¹ ) 900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 237@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 23.5@0-100°C
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Available Configurations

Properties common to all products in this list

Commodity: Metals Material: Aluminum Form: Foil (Light Tight) Grade: 1050 Composition: Al CAS Number: 7429-90-5 Purity: 99.5% Opacity: Light Tight

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Tolerances

Foil (Light Tight)
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%
Linear dimension <100mm ±1mm
Linear dimension >=100mm +2 / -1%