CAS #:

Linear Formula:

HfOCl2 • 8H2O

MDL Number:


EC No.:



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

Compound Formula H16Cl2HfO9
Molecular Weight 409.52 (Anhydrous: 265.4)
Appearance Colorless powder
Melting Point N/A
Boiling Point N/A
Density 2.2 g/cm3
Solubility in H2O N/A
Exact Mass 409.963687
Monoisotopic Mass 409.963687

Hafnium Oxychloride Health & Safety Information

Signal Word Danger
Hazard Statements H302 + H312 + H332-H314
Hazard Codes C
Precautionary Statements P280-P305 + P351 + P338-P310
Flash Point Not applicable
Risk Codes 34
Safety Statements 26-36/37/39-45-60
RTECS Number MG4800000
Transport Information UN3260 8/PG III
WGK Germany 3
GHS Pictograms

About Hafnium Oxychloride

Hafnium Oxychloride is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Hafnium Oxychloride Synonyms

Hafnium Oxychloride Octahydrate; Dichlorooxohafnium; Hafnium chloride oxide; hafnium dichloride oxide; hafnium dichoride monoxide; Hafnyl chloride; Dichloro(oxo)hafnium; chloro hypochlorite hafnium; hafnium(+4) cation; oxygen(-2) anion; dichloride; octahydrate; Hafnium chloride oxide hydrate; 13759-17-6

Chemical Identifiers

Linear Formula HfOCl2 • 8H2O
MDL Number MFCD00150417
EC No. 237-345-3
Pubchem CID 18686634
IUPAC Name hafnium(4+); oxygen(2-); dichloride; octahydrate
SMILES [O-2].O.O.O.O.O.O.O.[Hf+4].[Cl-].[Cl-].O
InchI Identifier InChI=1S/2ClH.Hf.8H2O.O/h2*1H;;8*1H2;/q;;+4;;;;;;;;;-2/p-2

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


Chlorine is a Block P, Group 17, Period 3 element. Its electron configuration is [Ne]3s23p5. The chlorine atom has a covalent radius of 102±4 pm and its Van der Waals radius is 175 pm. Chlorine ModelIn its elemental form, chlorine is a yellow-green gas. Chlorine is the second lightest halogen after fluorine. It has the third highest electronegativity and the highest electron affinity of all elements, making it a strong oxidizing agent. It is rarely found by itself in nature. Chlorine was discovered and first isolated by Carl Wilhelm Scheele in 1774. It was first recognized as an element by Humphry Davy in 1808.


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.

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