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CAS No.: | 37230-84-5 |
---|---|
Name: | HAFNIUMCHLORIDE |
Molecular Structure: | |
Formula: | Cl4Hf |
Molecular Weight: | 320.3 |
Density: | g/cm3 |
Boiling Point: | °Cat760mmHg |
Flash Point: | °C |
Safety: | Poison by intraperitoneal route. Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits toxic fumes of Cl−. See also HAFNIUM and CHLORIDES. |
PSA: | 0.00000 |
LogP: | 0.00000 |
Hafnium chloride with cas register number of 37230-84-5 is also named as Hafnium tetrachloride ; Hafnium(IV) chloride ; HfCl4 ; 590592_ALDRICH ; 51302_FLUKA ; MolPort-003-928-717 ; CID37715 ; EINECS 236-826-5 ,and so on. Hafnium chloride (CAS No.37230-84-5) is colourless solid which is the precursor to most hafnium organometallic compounds.
IUPAC Name: Tetrachlorohafnium
CAS: 37230-84-5
Molecular Formula: Cl4Hf
Molecular Weight: 320.302
Molecular structure:
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Enthalpy of Vaporization: 16.15 kJ/mol
Vapour Pressure: 33900 mmHg at 25°C
Topological Polar Surface Area: 0
Heavy Atom Count: 5
Formal Charge: 0
Complexity: 19.1
Isotope Atom Count 0
Defined Atom StereoCenter Count: 0
Undefined Atom StereoCenter Count: 0
Defined Bond StereoCenter Count: 0
Undefined Bond StereoCenter Count: 0
Covalently-Bonded Unit Count: 1
Hafnium chloride (CAS No.37230-84-5) is commonly used as a Lewis acid and catalyst for certain alkylation and isomerism reactions. It also can be used in organic synthesis and materials science applications.
Hafnium chloride (CAS No.37230-84-5) can be prepared by following steps:
(1) the reaction of carbon tetrachloride and hafnium oxide at above 450 °C;
(2) chlorination of a mixture of HfO2 and carbon above 600 °C;
(3) chlorination of hafnium carbide above 250 °C.
1. | skn-rbt 500 mg MLD | 34ZIAG Toxicology of Drugs and Chemicals ,Deichmann, W.B.,New York, NY,Academic Press, Inc..: 1969,296. | ||
2. | orl-rat LD50:2362 mg/kg | 85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,71. | ||
3. | ipr-mus LD50:135 mg/kg | EQSSDX Environmental Quality and Safety, Supplement. 1 (1975),1. |