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镨,块, Pr, 25mm Max. Lump Size, 2N
镨,块, Pr, 25mm Max. Lump Size, 2N图片
品牌: Goodfellow
纯度含量: 99.0%
产地: 英国
索取资料及报价
品牌:Goodfellow
纯度含量:99.0%
产地:英国
产品介绍

Supplied in 100g bottles only.

Packing Note: Packed in Oil

订货号包装规格
Weight
671-940-18100g
992-515-90200g
064-490-36300g

产品参数

Maximum Lump Size[]25mm
Purity[纯度]99.0%
Weight[重量]100g - 300g
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Polycrystalline )31.2
Hardness - Vickers ( kgf mm⁻² ) ( Polycrystalline )40
Material conditionPolycrystalline
Poisson's ratio ( Polycrystalline )0.312
Tensile modulus ( GPa ) ( Polycrystalline )35.20
Tensile strength ( MPa ) ( Polycrystalline )110.00
Yield strength ( MPa ) ( Polycrystalline )103.0
Atomic Properties(原子属性)
Atomic number59
Atomic weight ( amu )140.90770
Crystal structureHexagonal Close Packed
Electronic structureXe4f³6s²
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
Thermal neutron absorption cross-section ( Barns )11.5000
Valences shown3 ,4
Physical Properties(物理性质)
Boiling point ( C )3512
Density ( g cm⁻³ )6.782 @20℃
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )4.800 @0-100
Latent heat of evaporation ( J g⁻¹ )2343
Latent heat of fusion ( J g⁻¹ )80.00
Melting point ( C )931.00
Specific heat ( J K⁻¹ kg⁻¹ )192.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )12.50 @0-100℃
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )68@20℃
Temperature coefficient ( K⁻¹ )0.00171 @0-100℃

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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