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266779

Sigma-Aldrich

Hafnium

wire, diam. 1.0 mm, ≥99.9% 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:
24856159

Quality Level

100

Assay

≥99.9% trace metals basis (purity excludes ~2% zirconium)

form

wire

resistivity

29.6 μΩ-cm, 0°C

diam.

1.0 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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Quantity

2 g = 20 cm

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 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

266779-VAR:
266779-2G:
266779-BULK:
266779-2G-PW:
266779-10G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKBS0961V
MKBB7234
01918TW
10713JG
02412MN

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Byung-Hak Moon et al.
Journal of nanoscience and nanotechnology, 11(8), 7428-7432 (2011-11-23)
In this study, we investigated the electrochemical oxide nanotube formation on the Ti-35Ta-xHf alloys for dental materials. The Ti-35Ta-xHf alloys contained from 3 wt.% to 15 wt.% Hf were manufactured by arc melting furnace. The nanotube oxide layers were formed
Christopher C Underwood et al.
Inorganic chemistry, 52(1), 237-244 (2012-12-19)
This paper describes the hydrothermal chemistry of alkali hafnium fluorides, including the synthesis and structural characterization of five new alkali hafnium fluorides. Two ternary alkali hafnium fluorides are described: Li(2)HfF(6) in space group P31m with a = 4.9748(7) Å and
Michael J Sgro et al.
Chemical communications (Cambridge, England), 49(26), 2610-2612 (2013-02-07)
Hf-phosphinoamide cation complexes behave as metal-based frustrated Lewis pairs and bind one or two equivalent of CO2 and in as well can activate CO2 in a bimetallic fashion to give a pseudo-tetrahedral P2CO2 fragment linking two Hf centres.
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
Daqin Chen et al.
Chemical communications (Cambridge, England), 48(86), 10630-10632 (2012-09-27)
Novel Yb/Er(Tm):Na(3)MF(7) (M = Zr, Hf) nanocrystals with intrinsic single-band upconversion emission, in contrast to the routine lanthanide-doped fluoride nanocrystals which show typical multi-band upconversion emissions, are reported for the first time. Specifically, the red upconversion intensity of the Yb/Er:Na(3)ZrF(7)
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