ttf1028
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تاریخ ثبت نام: 2019/11/14
تاریخ تولد: تعیین نشده
زمان محلی: 2024/03/29 , 12:50 AM
وضعیت: آفلاین

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تاریخ عضویت: 2019/11/14
آخرین بازدید: 2019/11/14، 05:39 AM
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زندگی‌نامه: Niobium Metal is a silver-gray active metal with a molecular formula of Nb. Niobium metals are extremely stable in air at room temperature and do not interact with air. Although it has a higher melting point in the elemental state (2,468 ° C), its density is lower than other refractory metals. It also resists various types of erosion and forms a dielectric oxide layer. It does not react with hydrochloric acid, concentrated nitric acid and sulfuric acid under both cold and hot conditions. It can be used to Magnetic material, etc. It can also be used as an electrode, rectifier, and electrolytic capacitor of an electron tube. Medically used to make thin slices or thin lines, and to repair the damaged tissue. Although Tantalum is highly resistant to corrosion, its corrosion resistance is due to the formation of a stable Niobium pentoxide (Nb2O5) protective film on the surface.
Product Series
ProductProduct CodeSafety DataTechnical Data
Niobium Metal 99.9%ET-NbM-01
Niobium Metal 99.95%ET-NbM-02
Properties (Theoretical)
Molecular Weight92.9
AppearanceSilvery
Melting Point2477 °C
Boiling Point4744 °C
Density8.57 g/cm3
Electrical Resistivity152 Ω ·m (0 °C)
Electronegativity1.6 Paulings
Heat of Vaporization689.9 kJ/mol
Poisson's Ratio0.4
Specific Heat0.27 kJ/kg·K
Tensile StrengthN/A
Thermal Conductivity5.37 W/m ·K
Thermal Expansion7.3 µm/(m·K)
Vickers Hardness1320 MPa
Young's Modulus105 GPa
Health & Safety Information
Signal WordN/A
Hazard StatementsN/A
Hazard CodesN/A
Precautionary StatementsN/A
Flash PointNot applicable
Risk CodesN/A
Safety StatementsN/A
RTECS NumberN/A
Transport InformationNONH
WGK GermanyNONH
Packaging Specifications
Finished packaging: 50 kg / barrel, 500 kg / tray
Sample packaging: 500 g / bag, 1 kg / bottle
Application
It can be used to Magnetic material, etc. It can also be used as an electrode, rectifier, and electrolytic capacitor of an electron tube. Medically used to make thin slices or thin lines, and to repair the damaged tissue. Although Tantalum is highly resistant to corrosion, its corrosion resistance is due to the formation of a stable Niobium pentoxide (Nb2O5) protective film on the surface.Niobium price
website:http://www.eternal-element-118.com/rare-metals-element/niobium/
جنسیت: نامشخص