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Merck
CN

266795

Sigma-Aldrich

Hafnium

foil, thickness 0.02 mm, 99.5% trace metals basis (purity excludes ~2% zirconium)

Synonym(s):

Celtium, Hafnium element

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About This Item

Empirical Formula (Hill Notation):
Hf
CAS Number:
7440-58-6
Molecular Weight:
178.49
EC Number:
231-166-4
MDL number:
MFCD00011032
UNSPSC Code:
12352300
PubChem Substance ID:
24856161

Key Documents

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Assay

99.5% trace metals basis (purity excludes ~2% zirconium)

form

foil

resistivity

29.6 μΩ-cm, 0°C

thickness

0.02 mm

bp

4602 °C (lit.)

mp

2227 °C (lit.)

density

13.3 g/cm3 (lit.)

SMILES string

[Hf]

InChI

1S/Hf

InChI key

VBJZVLUMGGDVMO-UHFFFAOYSA-N

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Preparation Note

3.8 g = 100 × 150 mm

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
02618TW

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Laurence Maggiorella et al.
Future oncology (London, England), 8(9), 1167-1181 (2012-10-04)
There is considerable interest in approaches that could improve the therapeutic window of radiotherapy. In this study, hafnium oxide nanoparticles were designed that concentrate in tumor cells to achieve intracellular high-energy dose deposit. Conventional methods were used, implemented in different
Hyun-June Jung et al.
Advanced materials (Deerfield Beach, Fla.), 24(25), 3396-3400 (2012-05-26)
Bismuth nanocrystals for a nanoscale floating gate memory device are self-assembled in Bi(2) Mg(2/3) Nb(4/3) O(7) (BMN) dielectric films grown at room temperature by radio-frequency sputtering. The TEM cross-sectional image shows the "real" structure grown on a Si (001) substrate.
Suresh Kumar Raman Pillai et al.
ACS applied materials & interfaces, 4(12), 7047-7054 (2012-12-01)
The large-scale application of semiconducting single-walled carbon nanotubes (s-SWCNTs) for printed electronics requires scalable, repeateable, as well as noncontaminating assembly techniques. Previously explored nanotube deposition methods include serial methods such as inkjet printing and parallel methods such as spin-coating with
José Luis Olivares-Romero et al.
Journal of the American Chemical Society, 134(12), 5440-5443 (2012-03-17)
Asymmetric epoxidation of allylic and homoallylic amine derivatives catalyzed by Hf(IV)-bishydroxamic acid complexes is described. Under similar conditions, aldimine and ketimine produced oxaziridines. The sulfonyl group is demonstrated to be an effective directing group for these transformations.
Célia Lourenço et al.
The journal of physical chemistry. A, 116(51), 12399-12405 (2012-11-29)
Fourier transform ion cyclotron resonance mass spectrometry was used to characterize the gas-phase reactivity of Hf dipositive ions, Hf(2+)and HfO(2+), toward several oxidants: thermodynamically facile O-atom donor N(2)O, ineffective donor CO, and intermediate donors O(2), CO(2), NO, and CH(2)O. The
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