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258202

Sigma-Aldrich

Hafnium(IV)-chlorid

98%

Synonym(e):

Hafnium tetrachloride, Tetrachlorohafnium

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About This Item

Lineare Formel:
HfCl4
CAS-Nummer:
13499-05-3
Molekulargewicht:
320.30
EG-Nummer:
236-826-5
MDL-Nummer:
MFCD00011034
UNSPSC-Code:
12352302
PubChem Substanz-ID:
24855637
NACRES:
NA.23

Dampfdruck

1 mmHg ( 190 °C)

Assay

98%

Form

powder

mp (Schmelzpunkt)

432 °C (lit.)

Löslichkeit

H2O: decomposes(lit.)

SMILES String

Cl[Hf](Cl)(Cl)Cl

InChI

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

InChIKey

PDPJQWYGJJBYLF-UHFFFAOYSA-J

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Allgemeine Beschreibung

Hafnium(IV) chloride, also known as hafnium tetrachloride, is commonly used as a precursor in the production of hafnium metal and various hafnium compounds. Additionally, it serves as a catalyst in certain organic synthesis reactions. Due to its reactivity and sensitivity to moisture, hafnium(IV) chloride is typically handled under an inert atmosphere.

Anwendung

Hafnium(IV) chloride can be used as:     
  • A precursor in the synthesis of lithium hafnium phosphate, which is a solid electrolyte material used in lithium batteries due to its high ionic conductivity and chemical stability.      
  • A catalyst in the acetalization process of various carbonyl compounds, including aldehydes and ketones.      
  • A catalyst in the direct ester condensation of carboxylic acids with alcohols.    
  • A high-capacity cathode material for lithium and sodium-ion batteries.

Piktogramme

Corrosion
GHS05

Signalwort

Danger

H-Sätze

H290,H314

Gefahreneinstufungen

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

Zusätzliche Gefahrenhinweise

EUH014

Lagerklassenschlüssel

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Analysenzertifikate (COA)

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Tetrakis(ethylmethylamid)hafnium(IV) ≥99.99% trace metals basis

Sigma-Aldrich

553123

Tetrakis(ethylmethylamid)hafnium(IV)

Tetrakis(dimethylamido)hafnium(IV) ≥99.99%

Sigma-Aldrich

455199

Tetrakis(dimethylamido)hafnium(IV)

Direct condensation of carboxylic acids with alcohols catalyzed by hafnium (IV) salts.
Ishihara K, et al.
Science, 290.5494, 1140-1142 (2000)
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.

Artikel

Solid-State Metathesis Materials Synthesis

In the last two decades, a new method termed solid-state metathesis (SSM) has been developed to synthesize compounds that are often difficult to produce conventionally.

Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..

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