|
gptkbp:instanceOf
|
gptkb:chemical_compound
|
|
gptkbp:abundanceInEarthsCrust
|
about 165 ppm
|
|
gptkbp:allotropes
|
gptkb:alpha-zirconium
gptkb:beta-zirconium
|
|
gptkbp:appearance
|
silvery white
|
|
gptkbp:atomicNumber
|
40
|
|
gptkbp:atomicWeight
|
91.224
|
|
gptkbp:block
|
d-block
|
|
gptkbp:boilingPoint
|
4409°C
|
|
gptkbp:CASNumber
|
7440-67-7
|
|
gptkbp:category
|
gptkb:metal
transition metal
refractory metal
|
|
gptkbp:corrosionResistance
|
high
|
|
gptkbp:countryWithLargestProduction
|
gptkb:Australia
gptkb:China
gptkb:South_Africa
|
|
gptkbp:crystalSystem
|
hexagonal close-packed
|
|
gptkbp:density
|
6.52 g/cm³
|
|
gptkbp:discoveredBy
|
gptkb:Martin_Heinrich_Klaproth
|
|
gptkbp:discoveredIn
|
1789
|
|
gptkbp:electronConfiguration
|
[Kr] 4d2 5s2
|
|
gptkbp:electronegativity
|
1.33 (Pauling scale)
|
|
gptkbp:foundIn
|
Earth's crust
|
|
gptkbp:hardnessMohs
|
5
|
|
gptkbp:isotopes
|
gptkb:Zr-90
gptkb:Zr-91
gptkb:Zr-92
gptkb:Zr-94
gptkb:Zr-96
|
|
gptkbp:IUPACName
|
zirconium
|
|
gptkbp:magneticOrdering
|
paramagnetic
|
|
gptkbp:meltingPoint
|
1855°C
|
|
gptkbp:molarHeatCapacity
|
25.36 J/(mol·K)
|
|
gptkbp:namedAfter
|
gptkb:mineral_zircon
|
|
gptkbp:oxidationStates
|
+4
|
|
gptkbp:period
|
5
|
|
gptkbp:relatedGroup
|
4
|
|
gptkbp:source
|
zircon
baddeleyite
|
|
gptkbp:standardState
|
gptkb:stone
|
|
gptkbp:symbol
|
gptkb:Zr
|
|
gptkbp:thermalConductivity
|
22.7 W/(m·K)
|
|
gptkbp:toxicity
|
low
|
|
gptkbp:uses
|
gptkb:ceramics
nuclear reactors
surgical instruments
alloys
refractories
|
|
gptkbp:bfsParent
|
gptkb:Barium_star
|
|
gptkbp:bfsLayer
|
6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Zirconium
|