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258202

Sigma-Aldrich

Hafnium(IV) chloride

98%

Sinonimo/i:

Hafnium tetrachloride, Tetrachlorohafnium

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About This Item

Formula condensata:
HfCl4
Numero CAS:
13499-05-3
Peso molecolare:
320.30
Numero CE:
236-826-5
Numero MDL:
MFCD00011034
Codice UNSPSC:
12352302
ID PubChem:
24855637
NACRES:
NA.23

Tensione di vapore

1 mmHg ( 190 °C)

Livello qualitativo

100

Saggio

98%

Forma fisica

powder

Punto di fusione

432 °C (lit.)

Solubilità

H2O: decomposes(lit.)

Stringa SMILE

Cl[Hf](Cl)(Cl)Cl

InChI

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

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Pittogrammi

Corrosion
GHS05

Avvertenze

Danger

Indicazioni di pericolo

H290,H314

Classi di pericolo

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

Rischi supp

EUH014

Codice della classe di stoccaggio

8A - Combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

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Certificati d'analisi (COA)

Lot/Batch Number
MKCK5155
MKCG2121
MKCC4230
MKBT6072V
STBB8973V

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Sigma-Aldrich

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Sigma-Aldrich

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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)
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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.

Articoli

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.

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