Niobium carbide
- CAS No.
- 12069-94-2
- Chemical Name:
- Niobium carbide
- Synonyms
- Nitinol Tubing;NIOBIUM CARBIDE;COLUMBIUM CARBIDE;Methylidyneniobium;Niobium monocarbide;niobiumcarbide(nbc);Niobium(IV) carbide;SILICON, PIECES, 99.95%;Niobium Carbide, -150um;um 99.8 Methylidyneniobium
- CBNumber:
- CB5484548
- Molecular Formula:
- CHNb
- Molecular Weight:
- 105.93
- MOL File:
- 12069-94-2.mol
- Modify Date:
- 2024/1/17 15:25:57
| Melting point | 3500°C |
|---|---|
| Boiling point | 4300°C |
| Density | 7.6 g/mL at 25 °C(lit.) |
| solubility | insoluble in H2O, acid solutions |
| form | Powder |
| Specific Gravity | 7.6 |
| color | White |
| Resistivity | 51.1–74.0 (ρ/μΩ.cm) |
| Water Solubility | Insoluble in water. |
| Crystal Structure | Cubic, NaCl Structure |
| EPA Substance Registry System | Niobium carbide (NbC) (12069-94-2) |
| Modulus of Elasticity | 330 - 537 GPa |
|---|---|
| Poissons Ratio |
0.22 (@Temperature 23.0 °C ) 0.25 (@Temperature 1930 °C ) |
| Shear Modulus | 197 - 245 GPa |
| Hardness, Rockwell A | 90, at RT |
| Vickers Microhardness | 2400 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS02 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H228 | |||||||||
| Precautionary statements | P210-P240-P241-P280-P370+P378a | |||||||||
| RIDADR | UN3178 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 4.1 | |||||||||
| PackingGroup | III | |||||||||
| NFPA 704 |
|
Niobium carbide price More Price(2)
Niobium carbide Chemical Properties,Uses,Production
Chemical Properties
Niobium carbide is a green cubic crystal with metallic luster and belongs to the sodium chloride type cubic crystal system. The relative density is 8.47, the lattice constant a=0.447nm, and the melting point is 2300°C. Microhardness>235Gpa (>2400kg/mm2), harder than corundum. Elastic modulus 338000N/mm2, thermal expansion coefficient 6.65×10-6/K, thermal conductivity 14w/(m.K), heat of formation -140.7kJ/mol, specific heat capacity 36.8J/(mol.K), resistivity 35μΩ.cm. Insoluble in water and in all acids except a mixture of nitric acid and hydrogen fluoride. It is stable at 1000-1100°C, and rapidly oxidizes to niobium pentoxide at temperatures above 1100°C. Niobium carbide is easy to melt in titanium carbide, zirconium carbide, tungsten carbide and other compounds, and together form an isomorphous solid solution mixture.
Physical properties
Lavender gray powder, soluble in HF-HNO3 mixture. Wear resistant film, coating graphite in nuclear reactors. Oxidation in air becomes severe only above 1000°C.
Uses
Niobium carbide (NbC) is amongst the hardest technical compounds known. It should thus be excellently suited for machining applications and wear protection. It is used to make hard-tipped tools and special steels and to coat graphite in nuclear reactors.
Application
niobium carbide (NbC) is extremely hard refractory materials. TiC, ZrC, VC and NbC are commercially used in tool bits for cutting tools. HfC and NbC can also be used as refractory coatings in nuclear reactors.
Niobium carbide Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Triveni chemicals | 08048762458 | New Delhi, India | 6093 | 58 | Inquiry |
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Alfa Chemistry | United States | 24072 | 58 | Inquiry | |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29898 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | China | 34571 | 58 | Inquiry |
| Baoji Guokang Healthchem co.,ltd | +8615604608665 15604608665 | CHINA | 9427 | 58 | Inquiry |
| Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 | China | 3005 | 58 | Inquiry |
| Henan Alfa Chemical Co., Ltd | +8618339805032 | China | 13141 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| Triveni chemicals | 58 |
| CHEMSWORTH | 30 |
| Alfa Aesar | 58 |
| Alfa Chemistry | 58 |
| career henan chemical co | 58 |
| Chongqing Chemdad Co., Ltd | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 58 |
| Baoji Guokang Healthchem co.,ltd | 58 |
| Zhuoer Chemical Co., Ltd | 58 |
| Henan Alfa Chemical Co., Ltd | 58 |
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