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Hafnium Pieces

CAS #: 7440-58-6

Linear Formula:

MDL Number

MFCD00011032

EC No.:

231-166-4

Chemical Structure

ORDER

Product	Product Code	ORDER	SAFETY DATA	Technical data
(2N) 99% Hafnium Pieces	HF-M-02-PCS	Pricing Add to cart only	SDS >	Data Sheet >
(2N5) 99.5% Hafnium Pieces	HF-M-025-PCS	Pricing Add to cart only	SDS >	Data Sheet >
(3N) 99.9% Hafnium Pieces	HF-M-03-PCS	Pricing Add to cart only	SDS >	Data Sheet >
(3N5) 99.95% Hafnium Pieces	HF-M-035-PCS	Pricing Add to cart only	SDS >	Data Sheet >
(4N) 99.99% Hafnium Pieces	HF-M-04-PCS	Pricing Add to cart only	SDS >	Data Sheet >
(5N) 99.999% Hafnium Pieces	HF-M-05-PCS	Pricing Add to cart only	SDS >	Data Sheet >

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Hafnium Pieces Properties (Theoretical)

Molecular Weight	178.49
Appearance	Silver
Melting Point	2227 °C
Boiling Point	4602 °C
Density	13.31 g/cm³
Solubility in H2O	N/A
Poisson's Ratio	0.37
Young's Modulus	78 GPa
Vickers Hardness	1760 MPa
Tensile Strength	N/A
Thermal Conductivity	0.230 W/cm/K @ 298.2 K
Thermal Expansion	(25 °C) 5.9 µm·m^-1·K^-1
Electrical Resistivity	35.1 microhm-cm @ 25 °C
Electronegativity	1.3 Paulings
Specific Heat	0.035 Cal/g/K @ 25 °C
Heat of Fusion	6.0 Cal/gm mole
Heat of Vaporization	155 K-Cal/gm atom @ 4602 °C

Hafnium Pieces Health & Safety Information

Signal Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Precautionary Statements	P210
Flash Point	Not applicable
Risk Codes	N/A
Safety Statements	N/A
RTECS Number	MG4600000
Transport Information	NONH
WGK Germany	nwg

About Hafnium Pieces

American Elements specializes in producing high purity Shot and irregular shaped Hafnium Pieces with the highest possible density 99.9+% Ultra High Purity Metallic Pieces

99.9+% Ultra High Purity Metallic Pieces

and smallest possible average grain sizes for use in Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Our standard Pieces sizes average in the range of 3 mm, 4 -5 mm, 100 - 150 mm, 1/8"and 1/4". We can also provide pieces and shot outside this range. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar, or plate form, as well as other machined shapes and through other processes such as nanoparticles and in the form of solutions and organometallics.

Synonyms

39683

Chemical Identifiers

Linear Formula	Hf
Pubchem CID	23986
MDL Number	MFCD00011032
EC No.	231-166-4
Beilstein/Reaxys No.	N/A
SMILES	[Hf]
InchI Identifier	InChI=1S/Hf
InchI Key	VBJZVLUMGGDVMO-UHFFFAOYSA-N
Chemical Formula
Molecular Weight
Standard InchI
Appearance
Melting Point
Boiling Point
Density

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Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Hafnium products. Hafnium (atomic symbol: Hf, atomic number: 72) is a Block D, Group 4, Period 6 element with an atomic weight of 178.49. The number of electrons in each of Hafnium's shells is 2, 8, 18, 32, 10, 2 and its electron configuration is [Xe] 4f¹⁴ 5d² 6s². The hafnium atom has a radius of 159 pm and a Van der Waals radius of 212 pm. Hafnium was predicted by Dmitri Mendeleev in 1869 but it was not until 1922 that it was first isolated Dirk Coster and George de Hevesy. In its elemental form, hafnium has a lustrous silvery-gray appearance. Hafnium does not exist as a free element in nature. It is found in zirconium compounds such as zircon. Hafnium is often a component of superalloys and circuits used in semiconductor device fabrication. Its name is derived from the Latin word Hafnia, meaning Copenhagen, where it was discovered.