Indium Foil (Light Tight)

Formula: In

Form: Foil (Light Tight)

Material: Indium

CAS Number: 7440-74-6

Commodity: Metals

Light Tight: Light Tight

Goodfellow offers light-tight indium foil with a maximum purity of 99.999% (5N). This specialized form combines indium's unique properties with light-blocking capabilities. It's particularly valuable in applications requiring both specific thermal characteristics and protection from light interference, such as in sensitive optoelectronic devices and advanced display technologies. In scientific research, it's crucial for experiments involving photosensitive materials and in the development of next-generation quantum devices. The foil's high purity ensures minimal contamination in sensitive measurements, making it ideal for use in advanced semiconductor research and the development of novel sensing technologies. Its potential in quantum computing and advanced photonics underscores its significance in cutting-edge research and technology development.

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Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	49
Crystal structure	Face centred tetragonal
Electronic structure	Kr 4d¹⁰ 5s² 5p¹
Valences shown	1, 2, 3
Atomic weight( amu )	114.82
Thermal neutron absorption cross-section( Barns )	194
Photo-electric work function( eV )	4.12
Natural isotope distribution( Mass No./% )	113/ 4.3
Natural isotope distribution( Mass No./% )	115/ 95.7
Atomic radius - Goldschmidt( nm )	0.157
Ionisation potential( No./eV )	3/ 28.0
Ionisation potential( No./eV )	Apr-54
Ionisation potential( No./eV )	2/ 18.9
Ionisation potential( No./eV )	1/ 5.79

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Material condition	Soft
Poisson's ratio	0.45
Poisson's ratio	0.45
Bulk modulus( GPa )	35.3
Bulk modulus( GPa )	35.3
Tensile modulus( GPa )	10.6
Tensile modulus( GPa )	10.6
Hardness - Vickers( kgf mm⁻² )	10
Tensile strength( MPa )	2.6-4.5

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	8.8@20@20°C
Superconductivity critical temperature( K )	3.41
Temperature coefficient( K⁻¹ )	0.0052@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.69

Physical Properties

Element	Value
Boiling point( C )	2080
Density( gcm⁻³ )	7.3@20°C

Thermal Properties

Element	Value
Melting point( C )	156.6
Latent heat of evaporation( J g⁻¹ )	2024
Latent heat of fusion( J g⁻¹ )	28.5
Specific heat( J K⁻¹ kg⁻¹ )	234@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	81.8@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	24.8@0-100°C

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Indium Foil (Light Tight)

Material Properties for Metals