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钡,块, Ba, 25mm Max. Lump Size, 2N
钡,块, Ba, 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

Packing Note: Packed in Oil

订货号包装规格
Weight
975-998-1850g
999-770-78100g
971-345-09200g
307-669-78500g

产品参数

Maximum Lump Size[]25mm
Purity[纯度]99.0%
Weight[重量]50g - 500g
Atomic Properties(原子属性)
Atomic number56
Atomic weight ( amu )137.33000
Crystal structureBody Centred Cubic
Electronic structureXe6s²
Ionisation potential ( No./eV )1 / 5.21
Ionisation potential ( No./eV )2 / 10.0
Natural isotope distribution ( Mass No./% )135 / 6.6
Natural isotope distribution ( Mass No./% )130 / 0.1
Natural isotope distribution ( Mass No./% )136 / 7.9
Natural isotope distribution ( Mass No./% )138 / 71.7
Natural isotope distribution ( Mass No./% )132 / 0.1
Natural isotope distribution ( Mass No./% )137 / 11.2
Natural isotope distribution ( Mass No./% )134 / 2.4
Photo-electric work function ( eV )2.50
Thermal neutron absorption cross-section ( Barns )1.2000
Valences shown2
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )18.000 @0-100℃
Latent heat of evaporation ( J g⁻¹ )1100
Latent heat of fusion ( J g⁻¹ )55.80
Melting point ( C )725.00
Specific heat ( J K⁻¹ kg⁻¹ )192.0 @25℃
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Polycrystalline )9.7
Material conditionPolycrystalline
Poisson's ratio ( Polycrystalline )0.280
Tensile modulus ( GPa ) ( Polycrystalline )12.80
Physical Properties(物理性质)
Boiling point ( C )1640
Density ( g cm⁻³ )3.500 @20℃

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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