铋,块, Bi, 12mm Max. Lump Size, Shot, 5N

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半岛bd体育手机客户端介绍

Please note stocks of this material have two forms, either "teardrop" or irregular lump.

半岛bd体育手机客户端参数

Maximum Lump Size[]	12mm
Product Shape[形状]	Shot
Purity[纯度]	99.999%
Weight[重量]	50g - 1000g
Typical Analysis(典型分析)
Ag	1 PPM
Cu	4 PPM
Pb	3 PPM
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )	117@20℃
Temperature coefficient ( K?? )	0.00460 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )	-7.34
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Polycrystalline )	31.3
Hardness - Vickers ( kgf mm?? ) ( Polycrystalline )	16 - 19
Material condition	Polycrystalline
Poisson's ratio ( Polycrystalline )	0.330
Tensile modulus ( GPa ) ( Polycrystalline )	34.00
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? )	13.400 @0-100℃
Latent heat of evaporation ( J g?? )	857
Latent heat of fusion ( J g?? )	52.00
Melting point ( C )	271.30
Specific heat ( J K?? kg?? )	124.0 @25℃
Thermal conductivity ( W m?? K?? )	7.90 @0-100℃
Atomic Properties(原子属性)
Atomic number	83
Atomic weight ( amu )	208.98040
Crystal structure	Rhombohedral
Electronic structure	Xe4f??5d??6s?6p?
Ionisation potential ( No./eV )	5 / 56.0
Ionisation potential ( No./eV )	1 / 7.29
Ionisation potential ( No./eV )	3 / 25.6
Ionisation potential ( No./eV )	4 / 45.3
Ionisation potential ( No./eV )	6 / 88.3
Ionisation potential ( No./eV )	2 / 16.7
Photo-electric work function ( eV )	4.40
Thermal neutron absorption cross-section ( Barns )	0.0340
Valences shown	3 , 5
Physical Properties(物理性质)
Boiling point ( C )	1560
Density ( g cm?? )	9.800 @20℃