339113

Tantalum(V) ethoxide

99.98% trace metals basis

• Synonym(s): Pentaethoxytantalum, Pentaethyl tantalate, Tantalum ethylate, Tantalum pentaethoxide, Tantalum(V) ethoxide
• Linear Formula: Ta(OC₂H₅)₅
• CAS Number: 6074-84-6
• Molecular Weight: 406.25
• Beilstein/REAXYS Number: 3678999
• MDL number: MFCD00049785
• UNSPSC Code: 12352103
• PubChem Substance ID: 24860612
• NACRES: NA.23

Properties

• Quality Level: 100
• assay: 99.98% trace metals basis
• form: liquid
• reaction suitability: core: tantalum; reagent type: catalyst
• impurities: <2 wt. % toluene
• refractive index: n20/D 1.487 (lit.)
• bp: 155 °C/0.01 mmHg (lit.)
• mp: 21 °C (lit.)
• density: 1.566 g/mL at 25 °C (lit.)
• SMILES string: CCO[Ta](OCC)(OCC)(OCC)OCC
• InChI: 1S/5C2H5O.Ta/c5*1-2-3;/h5*2H2,1H3;/q5*-1;+5
• InChI key: HSXKFDGTKKAEHL-UHFFFAOYSA-N

Description

General description

Tantalum(V) ethoxide Ta(OC₂H₅)₅ is a tantalum alkoxide that can be used as a precursor in the preparation of tantalum oxide by chemical vapor deposition (CVD). It has excellent volatility and thermal stability. It can be synthesized by anodic oxidation of tantalum plate in anhydrous ethanol.

Application

Ta(OC₂H₅)₅ can be used in the formation of ultrathin tantalum oxide based capacitors. It can also be used as a liquid precursor in the preparation of tantalum carbide nanopowder for hard coating on metal surfaces.

Safety Information

• pictograms: GHS02
• signalword: Warning
• hcodes: H226
• pcodes: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 3
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: 84.2 °F - closed cup
• flash_point_c: 29 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter