|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:appearance
|
white solid
|
|
gptkbp:aroma
|
odorless
|
|
gptkbp:bandGap
|
5.9 eV (hexagonal)
|
|
gptkbp:boilingPoint
|
3273 °C
|
|
gptkbp:CASNumber
|
10043-11-5
|
|
gptkbp:category
|
gptkb:ceramics
gptkb:chemical_compound
superhard material
|
|
gptkbp:chemicalFormula
|
BN
|
|
gptkbp:color
|
white
|
|
gptkbp:containsElement
|
nitrogen
boron
|
|
gptkbp:crystalSystem
|
gptkb:wurtzite
hexagonal
cubic
|
|
gptkbp:density
|
2.1 g/cm³ (hexagonal)
|
|
gptkbp:discoveredBy
|
gptkb:Balmain
|
|
gptkbp:discoveredIn
|
1842
|
|
gptkbp:EC_number
|
233-136-6
|
|
gptkbp:electricalResistivity
|
>10¹⁶ Ω·cm (hexagonal)
|
|
gptkbp:flammability
|
non-flammable
|
|
gptkbp:hardness
|
Mohs 10 (cubic)
|
|
gptkbp:hasInChIKey
|
InChI=1S/BN/c1-2
|
|
gptkbp:hasSMILES
|
B#N
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
boron nitride
|
|
gptkbp:isoelectronicWith
|
carbon
|
|
gptkbp:mainProducer
|
gptkb:Momentive_Performance_Materials
gptkb:Henze_BNP
gptkb:Saint-Gobain
|
|
gptkbp:meltingPoint
|
2973 °C
|
|
gptkbp:molecularWeight
|
24.82 g/mol
|
|
gptkbp:PubChem_CID
|
66227
|
|
gptkbp:refractiveIndex
|
2.13 (hexagonal)
|
|
gptkbp:similarTo
|
gptkb:jewelry
graphite
|
|
gptkbp:solubility
|
insoluble
|
|
gptkbp:structureType
|
gptkb:wurtzite
hexagonal
cubic
|
|
gptkbp:thermalConductivity
|
~60 W/m·K (hexagonal)
|
|
gptkbp:thermalExpansion
|
4.7 × 10⁻⁶ K⁻¹ (hexagonal)
|
|
gptkbp:thermalStability
|
stable up to 1000 °C in air
|
|
gptkbp:toxicity
|
non-toxic
|
|
gptkbp:uses
|
cosmetics
moisturizer
electrical insulator
abrasive
thermal management
|
|
gptkbp:bfsParent
|
gptkb:triangular_lattice
|
|
gptkbp:bfsLayer
|
6
|