订货叶�/strong>	包装规格
Weight
780-284-21	50 g
815-389-82	100 g
563-440-57	200 g
310-743-08	500 g

产品参数

Maximum Particle Size[最大粒度]	75μm
Purity[纯度]	99.5%
Weight[重量]	50 g - 500 g
Typical Analysis(典型分析)
C	<100 PPM
Fe	200 PPM
N	<100 PPM
O	1000 PPM
Atomic Properties(原子属�?
Atomic number	22
Atomic weight ( amu )	47.88000
Crystal structure	Hexagonal Close Packed
Electronic structure	Ar3d?4s?
Ionisation potential ( No./eV )	3 / 27.5
Ionisation potential ( No./eV )	4 / 43.3
Ionisation potential ( No./eV )	5 / 99.2
Ionisation potential ( No./eV )	1 / 6.82
Ionisation potential ( No./eV )	2 / 13.6
Ionisation potential ( No./eV )	6 / 119
Natural isotope distribution ( Mass No./% )	50 / 5.3
Natural isotope distribution ( Mass No./% )	49 / 5.5
Natural isotope distribution ( Mass No./% )	46 / 8.0
Natural isotope distribution ( Mass No./% )	48 / 73.7
Natural isotope distribution ( Mass No./% )	47 / 7.5
Photo-electric work function ( eV )	4.10
Thermal neutron absorption cross-section ( Barns )	6.1000
Valences shown	2 ,3,4
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? )	8.900 @0-100ℂ�/td>
Latent heat of evaporation ( J g?? )	8893
Latent heat of fusion ( J g?? )	365.00
Melting point ( C )	1660.00
Specific heat ( J K?? kg?? )	523.0 @25ℂ�/td>
Thermal conductivity ( W m?? K?? )	21.90 @0-100ℂ�/td>
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Polycrystalline )	108.4
Hardness - Vickers ( kgf mm?? ) ( Annealed )	60
Izod toughness ( J m?? ) ( Annealed )	61
Material condition	Polycrystalline
Material condition	Annealed
Poisson's ratio ( Polycrystalline )	0.361
Tensile modulus ( GPa ) ( Polycrystalline )	120.20
Tensile strength ( MPa ) ( Annealed )	230.00 - 460.00
Yield strength ( MPa ) ( Annealed )	140.0 - 250.0
Physical Properties(物理性质)
Boiling point ( C )	3287
Density ( g cm?? )	4.500 @20ℂ�/td>
Electrical Properties(电气特�?
Electrical resistivity ( μOhmcm )	54@20ℂ�/td>
Superconductivity critical temperature ( K )	0.4000
Temperature coefficient ( K?? )	0.00380 @0-100ℂ�/td>

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、�/p>