400475

Tantalum(V) chloride

99.99% trace metals basis

• Synonym(s): Tantalum pentachloride
• Linear Formula: TaCl₅
• CAS Number: 7721-01-9
• Molecular Weight: 358.21
• EC Number: 231-755-6
• MDL number: MFCD00011253
• UNSPSC Code: 12352302
• PubChem Substance ID: 24864923
• NACRES: NA.23

Properties

• Quality Level: 200
• assay: 99.99% trace metals basis
• form: powder
• reaction suitability: reagent type: catalyst; core: tantalum
• impurities: ≤150.0 ppm Trace Metal Analysis
• density: 3.68 g/mL at 25 °C (lit.)
• SMILES string: Cl[Ta](Cl)(Cl)(Cl)Cl
• InChI: 1S/5ClH.Ta/h5*1H;/q;;;;;+5/p-5
• InChI key: OEIMLTQPLAGXMX-UHFFFAOYSA-I

Description

Application

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.

Preparation Note

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 Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302,H314,H335
• pcodes: P260 - P271 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
• target_organs: Respiratory system
• supp_hazards: EUH014
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges