12069-85-1
| Name | HAFNIUM CARBIDE |
| CAS | 12069-85-1 |
| EINECS(EC#) | 235-114-1 |
| Molecular Formula | CHf |
| MDL Number | MFCD00016126 |
| Molecular Weight | 190.5 |
| MOL File | 12069-85-1.mol |
Chemical 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. |
| Thermal Conductivity | 29.288 W/(m·K) |
| 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-] |
| Uses | |
| Knoop Microhardness | 2000 - 2500, 50 g load 2260 - 3050, 100 g load |
| Modulus of Elasticity | 352 GPa |
| Poissons Ratio | 0.18 |
| Shear Modulus | 149 GPa, Calculated |
| Vickers Microhardness | 1800 - 2500, 200 g load, single crystal |
Safety Data
| 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 |
| Storage Class | 4.1B - Flammable solid hazardous materials |
| Hazard Classifications | Flam. Sol. 2 |