- Tantalum carbide
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- $1.00 / 1KG
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2019-09-02
- CAS:12070-06-3
- Min. Order: 1KG
- Purity: 85.0-99.8%
- Supply Ability: 200kg
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| | Tantalum carbide Basic information |
| | Tantalum carbide Chemical Properties |
| Melting point | 3880°C | | Boiling point | 5500°C | | density | 13.9 | | solubility | soluble in HF-HNO3 mixture | | form | Powder | | color | Gray to black | | Resistivity | 30–42.1 (ρ/μΩ.cm) | | Water Solubility | Soluble in hydrofluoric acid and nitric acid. Partially soluble in water. | | Crystal Structure | Cubic, NaCl Structure | | InChI | InChI=1S/C.Ta/q-1;+1 | | InChIKey | DUMHRFXBHXIRTD-UHFFFAOYSA-N | | SMILES | [Ta+]#[C-] | | Hardness, Mohs | 9 - 10 | | Hardness, Rockwell A | 88 | | Modulus of Elasticity | 241 - 722 GPa | | Poissons Ratio | 0.24 | | Shear Modulus | 215 - 227 GPa | | Vickers Microhardness | 1790 | | EPA Substance Registry System | Tantalum carbide (TaC) (12070-06-3) |
| RIDADR | UN3178 | | WGK Germany | 3 | | TSCA | TSCA listed | | HazardClass | 4.1 | | PackingGroup | III | | Storage Class | 13 - Non Combustible Solids |
| | Tantalum carbide Usage And Synthesis |
| Chemical Properties | Hard, heavy, refractory, crystalline solid.
Hardness 1800 kg/sq mm, resistivity 30 μΩcm (room temperature).
Extremely resistant to chemical action except
at elevated temperature. | | Physical properties | Golden brown crystals, soluble
in HF-HNO mixture. Crucible 3
container for melting ZrO and
similar oxides with high melting
point. Corrosion resistant to
molten metals such as Ta and
Re. Readily corroded by liquid
metals such as Nb, Mo, and Sn.
Burning occurs in pure oxygen
above 800°C. Severe oxidation in
air above 1100–1400°C.
Maximum operating
temperature of 3760°C in helium | | Uses | Tantalum monocarbide, TaC, is a gold-colored powder produced industrially by direct reaction of carbon with either tantalum scrap or tantalum pentoxide at temperatures up to 1,900 °C (3,452 °F). It is added in small amounts (0.2–2 wt %) in the form of TaC or mixed carbides like TaNbC and WTiTaC to tungsten carbide–cobalt-based cutting tools in order to reduce grain growth. Adding 2–15 wt % TaC to cemented carbides considerably increases their thermal shock resistance and their resistance to cratering and oxidation. The tantalum–carbon phase diagram shows the existence of several subcarbides. | | Uses | Cutting tools and dies, cemented carbide tools. | | Uses | A mixture of tantalum carbide (TaC) and graphite is a very hard material and is used to
form the cutting edge of machine tools. | | Flammability and Explosibility | Non flammable | | reaction suitability | reagent type: catalyst
core: tantalum | | Industrial uses | Tantalum carbide and tungsten carbide combinedin a matrix of nickel, cobalt, and/or chromiumprovide an RHM formulation especiallysuited for a combination of corrosion and wearresistance. Some grades are almost as corrosionresistant as platinum. Nozzles, orifice plates,and valve components are typical uses. |
| | Tantalum carbide Preparation Products And Raw materials |
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