Product Code : ME-Nb-5N-PO
Niobium powder is dark gray or silver gray powder. According to the use of the device is divided into capacitive grade niobium powder and metallurgical grade niobium powder. Because of the defects of niobium capacitor itself, the niobium electrolytic capacitor has not been produced on a large scale. Metallurgical grade niobium powder is used to prepare various niobium materials or as an alloy additive.
Capacitive grade niobium monoxide is prepared by disproportionation reaction of niobium and niobium pentoxide or niobium pentoxide by rare earth metal thermal reduction method. The preparation methods of metallurgical grade niobium powder include metal thermal reduction method, thermal reduction method, molten salt electrolysis method, hydrogen reduction method of niobium chloride, etc.
CAS #: 7440-03-1
Linear Formula: Nb
MDL Number: MFCD00011126
EC No. :231-113-5
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Product Information
Niobium powder is dark gray or silver gray powder. According to the use of the device is divided into capacitive grade niobium powder and metallurgical grade niobium powder. Because of the defects of niobium capacitor itself, the niobium electrolytic capacitor has not been produced on a large scale. Metallurgical grade niobium powder is used to prepare various niobium materials or as an alloy additive.
Capacitive grade niobium monoxide is prepared by disproportionation reaction of niobium and niobium pentoxide or niobium pentoxide by rare earth metal thermal reduction method. The preparation methods of metallurgical grade niobium powder include metal thermal reduction method, thermal reduction method, molten salt electrolysis method, hydrogen reduction method of niobium chloride, etc.
Synonyms
Niobium particles, Niobium microparticles, Niobium micropowder, Niobium micro powder, Niobium micron powder, Niobium submicron powder, Niobium sub-micron powder
Specifications Of Niobium Powder
| Particle Size | -40 mesh to 500 mesh / Customized |
| Material | Niobium |
| Standard | ASTM |
| Purity | ≥99.9% |
ATT can design and manufacture according to customer's requirements beyond the regular dimension.
Chemical Composition for Niobium Powder
| Name | Ni(%,Min.) | Impurities (%, Max. ) | ||||||
| C | H | O | N | Al | Fe | Si | ||
| Niobium Powder | Residuals | 0.05 | 0.005 | 0.3 | 0.1 | / | 0.05 | 0.01 |
| Ni | Cr | W | Ta | Ti | Cu | Mo | ||
| 0.003 | 0.001 | 0.002 | 0.01 | 0.03 | 0.002 | 0.001 | ||
Niobium Powder Properties
| Molecular Weight | 92.9 |
| Appearance | Silvery |
| Melting Point | 2468 °C |
| Boiling Point | 4742 °C |
| Density | 8.57 g/cm3 |
| Solubility in H2O | N/A |
| Electrical Resistivity | 12.5 microhm-cm @ 0 °C |
| Electronegativity | 1.6 Paulings |
| Heat of Fusion | 6.5 Cal/gm mole |
| Heat of Vaporization | N/A |
| Poisson's Ratio | 0.4 |
| Specific Heat | 0.064 Cal/g/K @ 25 °C |
| Tensile Strength | N/A |
| Thermal Conductivity | 0.537 W/cm/K @ 298.2 K |
| Thermal Expansion | 7.3 µm/(m·K) |
| Vickers Hardness | 1320 MPa |
| Young's Modulus | 105 GPa |
Applications of Niobium Powder
*Used in the production of Nickel, Chromium and Iron-based superalloys. These alloys can be used in jet engines, gas turbine engines, rocket components, turbochargers and heat-resistant combustion devices;
*Niobium is used in commemorative coins with gold and silver；
*Niobium is the sealing material for high pressure sodium lamp arc tube;
*Steel addition.
Packaging of Niobium Powder
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’Niobium Powder is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | Nb |
| MDL Number | MFCD00011126 |
| EC No. | 231-113-5 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 23936 |
| SMILES | [Nb] |
| InchI Identifier | InChI=1S/Nb |
| InchI Key | GUCVJGMIXFAOAE-UHFFFAOYSA-N |
