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590592

Sigma-Aldrich

Hafnium(IV) chloride

purified by sublimation, 99.9% trace metals basis

Synonym(s):

Hafnium tetrachloride, Tetrachlorohafnium

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About This Item

Linear Formula:
HfCl4
CAS Number:
13499-05-3
Molecular Weight:
320.30
EC Number:
236-826-5
MDL number:
MFCD00011034
UNSPSC Code:
12352302
PubChem Substance ID:
24881286
NACRES:
NA.23

vapor pressure

1 mmHg ( 190 °C)

Quality Level

100

Assay

99.9% trace metals basis

form

powder

purified by

sublimation

impurities

≤1500.0 ppm Trace Metal Analysis

SMILES string

Cl[Hf](Cl)(Cl)Cl

InChI

1S/4ClH.Hf/h4*1H;/q;;;;+4/p-4

InChI key

PDPJQWYGJJBYLF-UHFFFAOYSA-J

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Application

Hafnium(IV) chloride can be used as a catalyst:
  • To synthesize α-aminophosphonates via the one-pot three-component reaction of aldehyde, amine, and phosphite.
  • For the conversion of carbohydrates into 5-hydroxymethylfurfural in ionic liquids.
  • For parallel synthesis of 1,2-disubstituted benzimidazoles from N-substituted phenylenediamines and aldehydes.
It can also be used as:
  • A precursor to prepare hafnium oxide nanoparticles via sol-gel method.
  • A starting material to synthesize bulky guanidinato hafnium(iv) chloridecomplexes.

accessory

Product No.
Description
Pricing

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Supplementary Hazards

EUH014

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBZ4379V
MKCB1942V
MKBW2445V
MKBQ0217V
MKBQ0185V

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Hafnium turnings, crystal bar, 99.7% trace metals basis

Sigma-Aldrich

266809

Hafnium

Visualization of the cytoskeletal elements in tissue culture cells by bloc-staining with hafnium chloride after rapid freezing and freeze-substitution fixation.
T Hatae et al.
Journal of electron microscopy, 33(2), 186-190 (1984-01-01)
Guoguang Liu et al.
Biomacromolecules, 9(3), 949-953 (2008-02-15)
The feasibility of a previously established method based on ozonolysis and hydrogenation reactions for the production of 9-hydroxynonanoic acid from oleic acid has been demonstrated. Metal catalyzed lactonization conditions have been used to convert 9-hydroxynonanoic acid into 1,11-dioxacycloicosane-2,12-dione, which is
Lutz Ackermann et al.
Organic & biomolecular chemistry, 5(12), 1975-1978 (2007-06-07)
Two distinct economical catalysts for intramolecular hydroaminations of electronically unactivated alkenes with basic amines are described, which are based on (a) group 4 metal halides under basic reaction conditions or (b) Brønsted-acid organocatalysts.

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