Tantalum(V) chloride
- CAS No.
- 7721-01-9
- Chemical Name:
- Tantalum(V) chloride
- Synonyms
- TaCl5;TANTALUM CHLORIDE;TANTALUM PENTACHLORIDE;2126087;um(V) chL;JACS-7721-1-9;Tantalum(Ⅴ)chloride;Pentachlorotantalum;TANTALUM(+5)CHLORIDE;TANTALUM(V) CHLORIDE
- CBNumber:
- CB3692046
- Molecular Formula:
- Cl5Ta
- Molecular Weight:
- 358.21
- MOL File:
- 7721-01-9.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/1/27 9:38:02
| Melting point | 221 °C |
|---|---|
| Boiling point | 242 °C |
| Density | 3.68 g/mL at 25 °C(lit.) |
| bulk density | 2400kg/m3 |
| vapor pressure | 69.9hPa at 169.3℃ |
| Flash point | 242°C |
| storage temp. | no restrictions. |
| solubility | Soluble in ether, carbon tetrachloride, sulfuric acid and potassium hydroxide. Slightly soluble in ethanol. |
| form | powder |
| color | White to pale yellow |
| Specific Gravity | 3.68 |
| Water Solubility | Soluble in water (reacts). Also soluble in ethanol, ether and carbon tetrachloride. |
| Sensitive | Moisture Sensitive |
| Merck | 14,9054 |
| InChIKey | OEIMLTQPLAGXMX-UHFFFAOYSA-I |
| CAS DataBase Reference | 7721-01-9(CAS DataBase Reference) |
| EPA Substance Registry System | Tantalum chloride (TaCl5) (7721-01-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H314-H335 | |||||||||
| Precautionary statements | P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338 | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 22-34 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3260 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | WW5600000 | |||||||||
| F | 3-10-21 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 28273990 | |||||||||
| Toxicity | LD50 in rats (mg/kg): 75 i.p.; 1900 orally (Cochran) | |||||||||
| NFPA 704 |
|
Tantalum(V) chloride price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 510688 | Tantalum(V) chloride anhydrous, powder, 99.999% trace metals basis | 7721-01-9 | 5G | ₹4535.68 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 510688 | Tantalum(V) chloride anhydrous, powder, 99.999% trace metals basis | 7721-01-9 | 25G | ₹16573.08 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 400475 | Tantalum(V) chloride 99.99% trace metals basis | 7721-01-9 | 5G | ₹3377.4 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 218634 | Tantalum(V) chloride 99.8% trace metals basis | 7721-01-9 | 5G | ₹2641.3 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 400475 | Tantalum(V) chloride 99.99% trace metals basis | 7721-01-9 | 25G | ₹10370.35 | 2022-06-14 | Buy |
Tantalum(V) chloride Chemical Properties,Uses,Production
Chemical Properties
Pale-yellow, crystalline powder; highly reactive. Decomposed by moist air. Soluble in alcohol and potassium hydroxide solution. Keep well stoppered.
Physical properties
Yellow monoclinic crystals; hygroscopic; density 3.68 g/cm3; melts at 216°C; vaporizes at 239.4°C; critical temperature 494°C; critical volume 402 cm3/mol; can be sublimed without decomposition in chlorine atmosphere; reacts with water; soluble in ethanol, ether and carbon tetrachloride.
Uses
Tantalum(V) chloride is used in the preparation of catalyst for the polycyclotrimerizations of alkenediynes, chloro-aryloxide compounds and for the plasma-enhanced atomic layer deposition of tantalum nitride films. It acts as a starting material for new edge-bridged octahedral M6 cluster compounds. It is involved in the preparation of tantalum(V) oxychloride, tantalum pentoxide. It is electrophilic and behaves like a Friedel-Crafts type catalyst, similar to aluminum(III) chloride.
Production Methods
Tantalum pentachloride, TaCl5, forms strongly hydroscopic, needle-shaped white crystals. It is produced on an industrial scale in large tonnage by the chlorination of tantalum scrap or ferrotantalum with NaFeCl4 or by the reductive chlorination of natural ores or synthetic raw materials. High purity TaCl5 is hydrolyzed with steam and thus converted to Ta2O5 of the highest purity. The reduction of TaCl5 with Mg or Al was repeatedly attempted but this thermite-type process never attained any industrial application. TaCl5 is soluble in absolute alcohol, forming the corresponding alkoxides. The alkoxides as well as the chlorides are suitable products for the deposition of tantalum or tantalum pentoxide layers.
Application
Tantalum(V) chloride is an excellent water soluble crystalline Tantalum source for uses compatible with chlorides.
Used to form mixed chloro-aryloxide compounds, such as [Ta(OC6H3-2,6-i-Pr2)2Cl3]2, which form pyridine or phosphine adducts with a distortedsix-coordinate geometry.
Also used as a starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.
Used in the preparation of a simple catalyst for the polycyclotrimerizations of alkenediynes.
Used for the plasma-enhanced atomic layer deposition of tantalum nitride films.
Safety Profile
Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of Cl-.
Purification Methods
Purify it by sublimation in a stream of Cl2. It forms colourless needles when pure (yellow when contaminated with even less than 1% of NbCl5). It is sensitive to H2O; even in conc HCl it decomposes to tantalic acid. It is soluble in EtOH. [Rolsten J Am Chem Soc 80 2952 1958, Brauer in Handbook of Preparative Inorganic Chemistry (Ed Brauer) Academic Press Vol II p 1302 1965.]
Tantalum(V) chloride Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6700 | 30 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6768 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5870 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6905 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6157 | 58 | Inquiry |
| Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 | China | 2904 | 58 | Inquiry |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | China | 20235 | 58 | Inquiry |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21628 | 55 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29858 | 58 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49732 | 58 | Inquiry |
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