Praseodymium Foil (Light Tight)

Praseodymium Foil (Light Tight) offers the same corrosion resistance, ductility, and unique magnetic and optical characteristics as standard praseodymium foil, but with a surface free of pinholes, blocking all external light transmissions. This makes it ideal for optical, photonic, and scientific environments where both rare-earth material properties and absolute light exclusion are essential. Industries use it for precision light-blocking baffles, thin-film deposition masking, and photonic shielding components. Specific applications include shielding sensitive optical detectors in spectroscopy, blocking stray light in astrophysical instruments, and forming light-tight enclosures for photonics research. In experimental setups, it enables studies that demand complete optical isolation combined with the performance advantages of a rare-earth foil. This specialized combination of material characteristics and guaranteed light-blocking capability makes it a critical choice for high-precision industrial and research applications.

Quick Links:

Properties

Reference & Citations

Flammable

each

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	59
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f³ 6s²
Valences shown	3,4
Atomic weight( amu )	140.9077
Thermal neutron absorption cross-section( Barns )	11.5
Atomic radius - Goldschmidt( nm )	0.183
Ionisation potential( No./eV )	1/ 5.42
Ionisation potential( No./eV )	2/ 10.55
Ionisation potential( No./eV )	4/ 38.95
Ionisation potential( No./eV )	5/ 57.45
Ionisation potential( No./eV )	3/ 21.62

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.312
Bulk modulus( GPa )	31.2
Tensile modulus( GPa )	35.2
Hardness - Vickers( kgf mm⁻² )	40
Tensile strength( MPa )	110
Yield strength( MPa )	103

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	68@20@20°C
Temperature coefficient( K⁻¹ )	0.00171@0-100°C

Physical Properties

Element	Value
Boiling point( C )	3512
Density( gcm⁻³ )	6.782@20°C

Thermal Properties

Element	Value
Melting point( C )	931
Latent heat of evaporation( J g⁻¹ )	2343
Latent heat of fusion( J g⁻¹ )	80
Specific heat( J K⁻¹ kg⁻¹ )	192@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	12.5@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	4.8@0-100