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铈,块, Ce, 25mm Max. Lump Size, 3N
铈,块, Ce, 25mm Max. Lump Size, 3N图片
品牌:Goodfellow
纯度含量:99.9%
产地:英国


产品介绍

Packing Note: Packed in Oil

订货号包装规格
Weight
215-232-4950g
275-301-97100g
702-439-77250g
764-156-78500g
191-417-201000g
248-275-031500g
561-419-062000g

产品参数

Maximum Lump Size[]25mm
Purity[纯度]99.9%
Weight[重量]50g - 2000g
Atomic Properties(原子属性)
Atomic number58
Atomic weight ( amu )140.12000
Crystal structureFace Centred Cubic
Electronic structureXe4f²6s²
Ionisation potential ( No./eV )2 / 10.85
Ionisation potential ( No./eV )1 / 5.47
Ionisation potential ( No./eV )3 / 20.20
Ionisation potential ( No./eV )4 / 36.72
Natural isotope distribution ( Mass No./% )136 / 0.2
Natural isotope distribution ( Mass No./% )140 / 88.4
Natural isotope distribution ( Mass No./% )142 / 11.1
Natural isotope distribution ( Mass No./% )138 / 0.3
Photo-electric work function ( eV )2.90
Thermal neutron absorption cross-section ( Barns )0.7300
Valences shown3 , 4
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Cast )24.4
Bulk modulus ( GPa ) ( Polycrystalline )24.4
Hardness - Vickers ( kgf mm⁻² ) ( Cast )25 - 30
Material conditionPolycrystalline
Material conditionCast
Poisson's ratio ( Cast )0.248
Poisson's ratio ( Polycrystalline )0.248
Tensile modulus ( GPa ) ( Cast )33.50
Tensile modulus ( GPa ) ( Polycrystalline )33.50
Tensile strength ( MPa ) ( Cast )102.00
Yield strength ( MPa ) ( Cast )91.0
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )8.000 @0-100℃
Latent heat of evaporation ( J g⁻¹ )2680
Latent heat of fusion ( J g⁻¹ )37.30
Melting point ( C )799.00
Specific heat ( J K⁻¹ kg⁻¹ )205.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )11.30 @0-100℃
Physical Properties(物理性质)
Boiling point ( C )3426
Density ( g cm⁻³ )6.750 @20℃
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )85.4@20℃
Temperature coefficient ( K⁻¹ )0.00870 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )1.14

易燃

与火焰接触后点燃的化学品,或与水接触后逸出高度易燃气体的化学品。

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