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266809

Sigma-Aldrich

Hafnium

turnings, crystal bar, 99.7% trace metals basis

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
MDL number:
MFCD00011032
UNSPSC Code:
12141718
PubChem Substance ID:
24856162
NACRES:
NA.23

Assay

99.7% trace metals basis

form

turnings, crystal bar

resistivity

29.6 μΩ-cm, 0°C

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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Related Categories

Storage Class Code

11 - 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

266809-100G:
266809-25G:
266809-BULK:
266809-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCH5458
MKBV0033V
MKBS8308V
MKBG7143V
MKBD0799

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Gerald Lucovsky et al.
Journal of nanoscience and nanotechnology, 12(6), 4811-4819 (2012-08-22)
Performance and reliability in semiconductor devices are limited by electronically active defects, primarily O-atom and N-atom vacancies. Synchrotron X-ray spectroscopy results, interpreted in the context of two-electron multiplet theories, have been used to analyze conduction band edge, and O-vacancy defect
Xuelu Ma et al.
Physical chemistry chemical physics : PCCP, 15(3), 901-910 (2012-12-04)
In this paper, the reaction mechanisms of CO assisted N(2) cleavage and functionalization activated by a dinuclear hafnium complex are studied using a density function theory (DFT) method. Several key intermediates (Ia, Ib, Ic and Id) with axial/equatorial N=C=O coordination
John J Curley et al.
Dalton transactions (Cambridge, England : 2003), 41(1), 192-200 (2011-10-25)
Treatment of Cp*Ir N(t)Bu (1) with the appropriate metallocene equivalent is an effective route for the preparation of the heterobimetallic complexes Cp*Ir(μ-N(t)Bu)MCp(2) (2-M, M = Ti, Zr, Hf). The electronic structures of the isostructural series of compounds, 2-M, are described
Tingting Zhao et al.
Journal of the mechanical behavior of biomedical materials, 13, 174-184 (2012-08-21)
NiTi shape memory alloy was modified by Hf ion implantation to improve its wear resistance and surface integrity against deformation. The Auger electron spectroscopy and x-ray photoelectron spectroscopy results indicated that the oxide thickness of NiTi alloy was increased by
Nicholas M Fahrenkopf et al.
ACS applied materials & interfaces, 4(10), 5360-5368 (2012-09-06)
Immobilization of biomolecular probes to the sensing substrate is a critical step for biosensor fabrication. In this work we investigated the phosphate-dependent, oriented immobilization of DNA to hafnium dioxide surfaces for biosensing applications. Phosphate-dependent immobilization was confirmed on a wide
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