Hafnium(IV) chloride
- CAS No.
- 13499-05-3
- Chemical Name:
- Hafnium(IV) chloride
- Synonyms
- HfCl4;HAFNIUM TETRACHLORIDE;HAFNIUM CHLORIDE;Hafnium chloride(HfCl4);1.0% Zr);0.05% Zr);Formula HfCl4;JACS-13499-05-3;Hafnium(IV) chL;Tetrachlorohafnium
- CBNumber:
- CB0731544
- Molecular Formula:
- Cl4Hf
- Molecular Weight:
- 320.3
- MOL File:
- 13499-05-3.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/28 13:53:20
| Melting point | 432 °C (lit.) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boiling point | 315.47°C (estimate) | ||||||||||||||
| Density | 1.89 g/cm3 | ||||||||||||||
| vapor pressure | 1 mm Hg ( 190 °C) | ||||||||||||||
| storage temp. | Inert atmosphere,Room Temperature | ||||||||||||||
| solubility | Soluble in methanol and acetone. | ||||||||||||||
| form | Powder | ||||||||||||||
| color | White | ||||||||||||||
| Water Solubility | Soluble in water, methanol and acetone. | ||||||||||||||
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water | ||||||||||||||
| Sensitive | Moisture Sensitive | ||||||||||||||
| Merck | 14,4588 | ||||||||||||||
| crystal system | Monoclinic | ||||||||||||||
| Space group | P2/c | ||||||||||||||
| Lattice constant |
|
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| Exposure limits |
ACGIH: TWA 0.5 mg/m3 NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3 |
||||||||||||||
| InChIKey | PDPJQWYGJJBYLF-UHFFFAOYSA-J | ||||||||||||||
| CAS DataBase Reference | 13499-05-3(CAS DataBase Reference) | ||||||||||||||
| EPA Substance Registry System | Hafnium chloride (HfCl4), (T-4)- (13499-05-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H290-H314 | |||||||||
| Precautionary statements | P234-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3260 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 9-21 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 28273985 | |||||||||
| NFPA 704 |
|
Hafnium(IV) chloride price More Price(13)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 590592 | Hafnium(IV) chloride purified by sublimation, 99.9% trace metals basis | 13499-05-3 | 5G | ₹18564.88 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 590592 | Hafnium(IV) chloride purified by sublimation, 99.9% trace metals basis | 13499-05-3 | 25G | ₹77377.1 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 258202 | Hafnium(IV) chloride 98% | 13499-05-3 | 10G | ₹6191.9 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 258202 | Hafnium(IV) chloride 98% | 13499-05-3 | 50G | ₹17817.95 | 2022-06-14 | Buy |
| ALFA India | ALF-045612-36 | Hafnium(IV) chloride, 99.9% (metals basis), Zr<0.5% | 13499-05-3 | 500g | ₹255873 | 2022-05-26 | Buy |
Hafnium(IV) chloride Chemical Properties,Uses,Production
Chemical Properties
Hafnium(IV) chloride is the inorganic compound with the formula HfCl4. This colourless solid is the precursor to most hafnium organometallic compounds. It has a variety of highly specialized applications, mainly in materials science and as a catalyst.
Physical properties
White monoclinic crystal; sublimes at 317°C; melts at 432°C at 33 atm (triple point); critical temperature 452.5°C; critical pressure 53.49 atm; critical volume 314 cm3/mol.
Uses
Hafnium chloride tetrahydrofuran complex is an efficient catalyst for the Diels-Alder cycloadditions, Ziegler-Natta polymerization of alkenes. It is used as control rods in nuclear reactors and in manufacture of light bulb filaments.
Preparation
Hafnium(IV) chloride can be prepared
(i) by chlorination of hafnium dioxide in the presence of carbon:
HfO2 + 2Cl2 + C → HfCl4 + 2CO
It also may be prepared by several other methods, such as
(ii) reaction of carbon tetrachloride with hafnium dioxide above 450°C;
(iii) heating a mixture of hafnium dioxide and carbon above 700°C;
and (iv) reaction of chlorine with hafnium at elevated temperatures.
Reactions
Hafnium(IV) chloride hydrolyzes, evolving hydrogen chloride:
HfCl4 + H2O→ HfOCl2+ 2 HCl
Aged samples thus often are contaminated with oxychlorides, which are also colourless.
THF forms a monomeric 2:1 complex:
HfCl4+ 2 OC4H8→HfCl4(OC4H8)2
Solubility in organics
Soluble in methanol, acetone, reacts strongly with water, highly hygroscopic, hydrolyzes in water.
Structure and conformation
This group 4 halide contains hafnium in the +4 oxidation state. Solid Hafnium(IV) chloride is a polymer with octahedral Hf centers. Of the six chloride ligands surrounding each Hf centre, two chloride ligands are terminal and four bridge to another Hf centre.
Hafnium(IV) chloride Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| SNA HEALTHCARE PVT LTD | +91-8652842416 +91-8652842416 | Mumbai, India | 88 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Aritech Chemazone Private Limited | +91-9034345475 | Punjab, India | 684 | 58 | Inquiry |
| Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 | China | 2905 | 58 | Inquiry |
| WUXI HONOR SHINE CHEMICAL CO.,LTD | +86-0510-83593312 +8619805123561 | China | 60 | 58 | Inquiry |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-15536356810 | China | 3878 | 58 | Inquiry |
| Hebei Saisier Technology Co., LTD | +86-18400010335 +86-18034520335 | China | 1003 | 58 | Inquiry |
| Hebei Longbang Technology Co., LTD | +86-18032476855 +86-18032476855 | China | 939 | 58 | Inquiry |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | China | 29798 | 60 | Inquiry |
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