769398
Hafnium(IV) oxide
pellets, diam. × thickness 9 mm × 4.2 mm
Synonym(s):
Hafnia
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About This Item
Empirical Formula (Hill Notation):
HfO2
CAS Number:
Molecular Weight:
210.49
EC Number:
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.23
form
pellets
diam. × thickness
9 mm × 4.2 mm
impurities
≤0.1% PBB (polybrominated biphenyls)
≤0.1% PBDE (polybrominated diphenyl ethers)
density
9.68 g/mL at 25 °C (lit.)
cation traces
Cd: ≤0.01%
Co: ≤0.0005%
Cr: ≤0.005%
Cu: ≤0.0005%
Fe: ≤0.005%
Hg: ≤0.1%
Pb: ≤0.1%
Ti: ≤0.005%
V: ≤0.005%
Zr: ≤1.0%
SMILES string
O=[Hf]=O
InChI
1S/Hf.2O
InChI key
CJNBYAVZURUTKZ-UHFFFAOYSA-N
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Application
High dielectric constant of hafnia makes it suitable for application in metal oxide based semiconductor devices. It also finds applications as optical coating materials.
Storage Class Code
11 - Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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Recent progress in ab initio simulations of hafnia-based gate stacks
Zhu, H., et al.
J. Mater. Sci., 47(21), 7399-7416 (2012)
Dual wavelength laser-induced damage threshold measurements of alumina/silica and hafnia/silica ultraviolet antireflective coatings.
Mrohs, M., et al.
Applied Optics, 55(1), 104-109 (2016)
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