334103
Silicon nitride
powder, ≥99.9% trace metals basis
Sinónimos:
Trisilicon tetranitride
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About This Item
Fórmula lineal:
Si3N4
Número de CAS:
Peso molecular:
140.28
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.23
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Quality Level
assay
≥99.9% trace metals basis
form
powder
particle size
<1 μm
density
3.44 g/mL at 25 °C (lit.)
SMILES string
N12[Si]34N5[Si]16N3[Si]25N46
InChI
1S/N4Si3/c1-5-2-6(1)3(5)7(1,2)4(5)6
InChI key
HQVNEWCFYHHQES-UHFFFAOYSA-N
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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.
Storage Class
11 - Combustible Solids
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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