Silicon nitride
ALDRICH/334103 - powder, ≥99.9% trace metals basis
Synonym: Trisilicon tetranitride
CAS Number: 12033-89-5
Empirical Formula (Hill Notation): N4Si3
Molecular Weight: 140.28
EC Number: 234-796-8
MDL Number: MFCD00011230
Linear Formula: Si3N4
Product Type: Chemical
| assay | ≥99.9% trace metals basis |
| density | 3.44 g/mL at 25 °C (lit.) |
| form | powder |
| InChI | 1S/N4Si3/c1-5-2-6(1)3(5)7 |
| InChI key | HQVNEWCFYHHQES-UHFFFAOYSA |
| particle size | <1 μm |
| SMILES string | N12[Si]34N5[Si]16N3[Si]25 |
| General description: | Silicon nitride based ceramics possess high fracture toughness, hardness and wear resistance, resistance to corrosion, thermal stability. Two known polymorphs of silicon nitride exist, alpha and beta Si3N4, both have hexagonal structure. A study shows that a third state, cubic spinel structure, has also been synthesized. |
| Packaging: | 25, 100 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.9% trace metals basis |
| Density | 3.44 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |