Skip to Content
Merck
CN
All Photos(1)

Key Documents

View All Documentation

Safety Information

266752

Sigma-Aldrich

Hafnium

powder, −325 mesh, 99.5% trace metals basis (purity excludes ~2% zirconium), contains 1:10 pentanol to water solution as stabilizer

Synonym(s):

Celtium, Hafnium element

Sign Into View Organizational & Contract Pricing
All Photos(1)

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:
24856157
NACRES:
NA.23

Assay

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

form

powder

contains

1:10 pentanol to water solution as stabilizer

resistivity

29.6 μΩ-cm, 0°C

particle size

−325 mesh

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

Looking for similar products? Visit Product Comparison Guide

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H228,H250

Hazard Classifications

Flam. Sol. 1 - Pyr. Sol. 1

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCK9646
MKBX3998V
MKBV7523V
MKBR9046V
MKBQ2316V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Germain Bayon et al.
Science (New York, N.Y.), 335(6073), 1219-1222 (2012-02-11)
About 3000 years ago, a major vegetation change occurred in Central Africa, when rainforest trees were abruptly replaced by savannas. Up to this point, the consensus of the scientific community has been that the forest disturbance was caused by climate
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
Liu Hao et al.
Optics express, 20(1), 698-705 (2012-01-26)
Conditioning effect on HfO2 single-layer film by quasi-cw laser was investigated. The conditioning process was monitored with laser calorimeter. Experimental results revealed that the HfO2 film absorption decreased as a function of the irradiation dose. Higher laser power accelerated the
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
View All Related Papers

Articles

Self-Propagating Reactions Induced by Mechanical Alloying

An article concerning self-propagating reactions induced by mechanical alloying, presented by Sigma-Aldrich.com.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service