Tantalum(V) ethoxide - ≥99.98% metals basis , CAS No.6074-84-6

CAS: 6074-84-6 Cat. No.: T475143 Molecular Weight: 406.25 EC Number: 228-010-2 PubChem CID: 160806

GRADE & PURITY ≥99.98% metals basis

Synonyms

Ethanol, tantalum(5+) salt (5:1) | Tantalum(5+) ethanolate | AKOS015902579 | DTXSID7064104 | HSXKFDGTKKAEHL-UHFFFAOYSA-N | ethanolate,tantalum(5+) | EINECS 228-010-2 | Ethanol, tantalum(5+) salt | Tantalum(V) ethoxide | Q2393155 | ethanolate;tantalum(5+)

Storage

Store at 2-8°C,Argon charged

Shipped In

Wet ice

Overview

Tantalum(V) ethoxide Ta(OC2H5)5is 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.Ta(OC2H5)5can 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.

Specifications

Synonyms

Ethanol, tantalum(5+) salt (5:1) | Tantalum(5+) ethanolate | AKOS015902579 | DTXSID7064104 | HSXKFDGTKKAEHL-UHFFFAOYSA-N | ethanolate, tantalum(5+) | EINECS 228-010-2 | Ethanol, tantalum(5+) salt | Tantalum(V) ethoxide | Q2393155 | ethanolate;tantalum(5+)

Specifications & Purity

≥99.98% metals basis

Storage

Store at 2-8°C, Argon charged

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥99.98% metals basis

Names and Identifiers

• Canonical Smiles: CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].[Ta+5]
• IUPAC Name: ethanolate;tantalum(5+)
• InChIKey: HSXKFDGTKKAEHL-UHFFFAOYSA-N
• INCHI: 1S/5C2H5O.Ta/c5*1-2-3;/h5*2H2,1H3;/q5*-1;+5
• Isomeric SMILES: CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].[Ta+5]
• PubChem CID: 160806
• Molecular Weight: 406.25

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic salts
    • Class Organic metal salts
      • Subclass Organic transition metal salts

• Kingdom: Organic compounds
• Superclass: Organic salts
• Class: Organic metal salts
• Subclass: Organic transition metal salts
• Intermediate Tree Nodes: Not available
• Direct Parent: Organic transition metal salts
• Alternative Parents: Organic zwitterions Organic oxides Hydrocarbon derivatives Alkoxides
• Molecular Framework: Not available
• Substituents: Organic transition metal salt - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic zwitterion - Alkoxide - Organooxygen compound - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as organic transition metal salts. These are organic salt compounds containing a transition metal atom in its ionic form.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Sensitivity: Moisture sensitive
• Refractive Index: 1.4880
• Flash Point(°C): 30°C
• Boil Point(°C): 155°C/0.01mmHg
• Melt Point(°C): 21 °C
• Molecular Weight: 406.250 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 5
• Rotatable Bond Count: 0
• Exact Mass: 406.118 Da
• Monoisotopic Mass: 406.118 Da
• Topological Polar Surface Area: 115.000 Ų
• Heavy Atom Count: 16
• Formal Charge: 0
• Complexity: 2.800
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 6

XLogP3

References

1. Yanzhi Dong, Gang Shu, Yibo Wei, Jinbin Pan, Dong Li, Shao-Kai Sun.  (2024)  Gram-Scale Synthesis of Renal-Clearable Tantalum Nanodots with High Water Solubility for Computed Tomography Imaging In Vivo.  ACS Nano,      [PMID:39207307] [10.1021/acsnano.4c06705]

2. Deye Sun, Wenru Li, Yantao Wang, Jiangwei Ju, Pengxian Han, Shanmu Dong, Jun Ma, Guanglei Cui.  (2025)  Combined effect of high voltage and large Li-ion flux on decomposition of Li6PS5Cl.  Chemical Science,  16  (23): (10289-10295).  [PMID:40386158] [10.1039/D5SC02018B]

3. Wanwan Wu, Linjie Song, Yinqi Qiao, Yan Bai, Xue Liu, Haiyan Li, Dongbin Dang.  (2026)  In-situ grown lead-free perovskite Cs3Bi2Br9 on porous Ta2O5 for boosted gas–solid phase CO2 photocatalytic conversion.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2026.166174]