| TANTALUM PENTAFLUORIDE Basic information |
| Product Name: | TANTALUM PENTAFLUORIDE |
| Synonyms: | Tantalum(V)pentafluoride;Tantalum(V) fluoride,98%;Tantalum Fluoxide;Tantalum(V) fluoride/ 99.9%;Tantalum(V) fluoride, 99.9% trace metals basis;TaF5;Tantalum fluoride (TaF5);tantalumfluoride(taf5) |
| CAS: | 7783-71-3 |
| MF: | F5Ta |
| MW: | 275.94 |
| EINECS: | 232-022-3 |
| Product Categories: | Tantalum Salts;Catalysis and Inorganic Chemistry;Chemical Synthesis;Salts;TantalumMetal and Ceramic Science;metal halide |
| Mol File: | 7783-71-3.mol |
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| TANTALUM PENTAFLUORIDE Chemical Properties |
| Melting point | 96.8 °C |
| Boiling point | 229.5 °C |
| density | 4.74 g/mL at 25 °C(lit.) |
| Fp | 230°C |
| form | Powder |
| Specific Gravity | 4.740 |
| color | off-white |
| Water Solubility | Decomposes in water forming tantalum oxyfluoride. Soluble in conc. and fuming HNO{3}Soluble in carbon disulfide, carbon tetrachloride and chloroform. Slightly soluble in acetic acid and ethanol. |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| Sensitive | Moisture Sensitive |
| Merck | 14,9055 |
| Exposure limits | ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3 |
| CAS DataBase Reference | 7783-71-3(CAS DataBase Reference) |
| EPA Substance Registry System | Tantalum fluoride (TaF5) (7783-71-3) |
| Safety Information |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-27-28-36/37/39-45 |
| RIDADR | UN 3260 8/PG 2 |
| WGK Germany | 3 |
| RTECS | WW5775000 |
| Hazard Note | Corrosive |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 2826199090 |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| ALFA | English |
| TANTALUM PENTAFLUORIDE Usage And Synthesis |
| Chemical Properties | white crystalline powder |
| Uses | Tantalum fluoride is a catalyst used to speed up organic chemical reactions. |
| Uses | Friedel-Crafts catalyst. |
| Uses | Tantalum pentafluoride, TaF5, is used in petrochemistry as an isomerization and alkyalation catalyst. In addition, the fluoride can be utilized as a fluorination catalyst for the production of fluorinated hydrocarbons. The pentafluoride is produced by the direct fluorination of tantalum metal or by reacting anhydrous hydrogen fluoride with the corresponding pentoxide or oxychloride in the presence of a suitable dehydrating agent. The ability of TaF5 to act as a fluoride ion acceptor in anhydrous HF has been used in the preparation of salts of the AsH4, H3S, and PH4 ions. The oxyfluorides TaOF3 and TaO2F do not find any industrial application. |
| Safety Profile | Poison by intravenous route. Corrosive. When heated to decomposition it emits toxic fumes of F-. See also TANTALUM and FLUORIDES. |
| TANTALUM PENTAFLUORIDE Preparation Products And Raw materials |
| Raw materials | CARBON DIOXIDE–>Hydrogen fluoride–>Fluorine–>Tantalum–>Tantalum(V) chloride |