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Hafnium Hydroxide

CAS #:

Linear Formula:



(2N) 99% Hafnium Hydroxide
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(3N) 99.9% Hafnium Hydroxide
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(4N) 99.99% Hafnium Hydroxide
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(5N) 99.999% Hafnium Hydroxide
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Hafnium Hydroxide Properties (Theoretical)

Compound Formula H4HfO4
Molecular Weight 246.52
Appearance Powder
Melting Point N/A
Boiling Point N/A
Density N/A
Solubility in H2O N/A
Exact Mass 247.957509
Monoisotopic Mass 247.957509

Hafnium Hydroxide Health & Safety Information

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
RTECS Number N/A
Transport Information N/A

About Hafnium Hydroxide

Hafnium hydroxide is generally available in most forms and purities. Please contact us for more information on availability and pricing.

Hafnium Hydroxide Synonyms

Hafnium tetrahydroxide, hafnium tetrahydrate, 127211-73-8, hafnium(IV) hydroxide

Chemical Identifiers

Linear Formula Hf(OH)4
MDL Number N/A
EC No. N/A
Pubchem CID 9881356
IUPAC Name hafnium(4+); tetrahydroxide
SMILES [OH-].[OH-].[OH-].[OH-].[Hf+4]
InchI Identifier InChI=1S/Hf.4H2O/h;4*1H2/q+4;;;;/p-4

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. Hafnium Bohr ModelThe 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. Elemental HafniumHafnium 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.


October 15, 2019
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