Zinc Foil (Light Tight)

Formula: Zn

Form: Foil (Light Tight)

Material: Zinc

CAS Number: 7440-66-6

Commodity: Metals

Light Tight: Light Tight

Zinc Foil (Light Tight) is part of our range of light blocking foils and comes in 80 variations, with multiple thicknesses from 0.025mm to 0.5mm. This foil is made of 99.95% pure zinc and blocks visible light as well as UV radiation. Its key properties include corrosion resistance, ductility and thermal/electrical conductivity. Zinc Foil (Light Tight) is used in applications requiring a thin, opaque barrier such as blocking light for photosensitive materials, shielding in analytical instruments, and as a substrate in thin film deposition processes.

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Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	30
Crystal structure	Hexagonal close packed
Electronic structure	Ar 3d¹⁰ 4s²
Valences shown	2
Atomic weight( amu )	65.38
Thermal neutron absorption cross-section( Barns )	1.1
Photo-electric work function( eV )	4.3
Natural isotope distribution( Mass No./% )	64/ 48.6
Natural isotope distribution( Mass No./% )	67/ 4.1
Natural isotope distribution( Mass No./% )	68/ 18.8
Natural isotope distribution( Mass No./% )	70/ 0.6
Natural isotope distribution( Mass No./% )	66/ 27.9
Atomic radius - Goldschmidt( nm )	0.137
Ionisation potential( No./eV )	6/ 108
Ionisation potential( No./eV )	1/ 9.39
Ionisation potential( No./eV )	4/ 59.4
Ionisation potential( No./eV )	3/ 39.7
Ionisation potential( No./eV )	2/ 17.96
Ionisation potential( No./eV )	5/ 82.6

Mechanical Properties

Element	Value
Hardness - Mohs	2.5
Material condition	Polycrystalline
Poisson's ratio	0.249
Bulk modulus( GPa )	69.4
Tensile modulus( GPa )	104.5

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	5.96@20@20°C
Superconductivity critical temperature( K )	0.85
Temperature coefficient( K⁻¹ )	0.0042@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.76

Physical Properties

Element	Value
Boiling point( C )	907
Density( gcm⁻³ )	7.14@20°C

Thermal Properties

Element	Value
Melting point( C )	419.5
Latent heat of evaporation( J g⁻¹ )	1748
Latent heat of fusion( J g⁻¹ )	111
Specific heat( J K⁻¹ kg⁻¹ )	388@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	116@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	31@0-100°C

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Zinc Foil (Light Tight)

Material Properties for Metals