A4727812
Hafnium carbide , 99.5%(metalsbasis, except zirconium),Zr<1% , 12069-85-1
Synonym(s):
HF516010
CAS NO.：12069-85-1
Empirical Formula: CHf
Molecular Weight: 190.5
MDL number: MFCD00016126
EINECS: 235-114-1
| Pack Size | Price | Stock | Quantity |
| 1G | RMB52.00 | In Stock |
|
| 10G | RMB263.20 | In Stock |
|
| 50G | RMB1030.40 | In Stock |
|
| 250G | RMB4799.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 2930 °C(lit.) |
| Density | 12.2 g/mL at 25 °C(lit.) |
| RTECS | MG4620000 |
| form | Powder |
| color | Gray |
| Resistivity | 45.0 (ρ/μΩ.cm) |
| Water Solubility | it is insoluble in water. |
| Crystal Structure | Cubic, NaCl Structure |
| Exposure limits | ACGIH: TWA 0.5 mg/m3 NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3 |
| InChI | InChI=1S/C.Hf/q-1;+1 |
| InChIKey | NVDNLVYQHRUYJA-UHFFFAOYSA-N |
| SMILES | [Hf+]#[C-] |
| Vickers Microhardness | 1800 - 2500, 200 g load, single crystal |
| Shear Modulus | 149 GPa, Calculated |
| Knoop Microhardness | 2000 - 2500, 50 g load 2260 - 3050, 100 g load |
| Poissons Ratio | 0.18 |
| Modulus of Elasticity | 352 GPa |
| CAS DataBase Reference | 12069-85-1 |
| EPA Substance Registry System | Hafnium carbide (HfC) (12069-85-1) |
Description and Uses
Hafnium carbide (HfC) with a melting point over 3890°C is a refractory binary compound. HfC and NbC can also be used as refractory coatings in nuclear reactors. The mixed carbide Ta4HfC5 possesses the highest melting point of any currently known compound at 4215°C.
Safety
| Symbol(GHS) |  GHS02 |
| Signal word | Warning |
| Hazard statements | H228 |
| Precautionary statements | P210-P240-P241-P280-P370+P378 |
| RIDADR | UN3178 |
| WGK Germany | 3 |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | III |
