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769401

Sigma-Aldrich

Hafnium(IV) oxide

pellets, diam. × thickness 13 mm × 5 mm

Synonym(s):

Hafnia

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About This Item

Empirical Formula (Hill Notation):
HfO2
CAS Number:
12055-23-1
Molecular Weight:
210.49
EC Number:
235-013-2
MDL number:
MFCD00003565
UNSPSC Code:
12352303
NACRES:
NA.23

form

pellets

diam. × thickness

13 mm × 5 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: ≤0.5%

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 Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

769401-VAR:
769401-BULK:
769401-25G:4548173359618

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Certificates of Analysis (COA)

Lot/Batch Number
BCBS6797

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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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