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Tantalum pentoxide

PubChem CID
62157
Structure
Tantalum pentoxide_small.png
Molecular Formula
Synonyms
  • Tantalum pentoxide
  • Tantalum oxide (Ta2O5)
  • TANTALUM OXIDE
  • Ditantalum pentaoxide
  • Tantalic acid anhydride
Molecular Weight
441.89 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Dates
  • Create:
    2005-08-08
  • Modify:
    2025-01-11

1 Structures

1.1 2D Structure

Chemical Structure Depiction
Tantalum pentoxide.png

1.2 3D Status

Conformer generation is disallowed since MMFF94s unsupported element, mixture or salt

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

oxygen(2-);tantalum(5+)
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/5O.2Ta/q5*-2;2*+5
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

BPUBBGLMJRNUCC-UHFFFAOYSA-N
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.4 SMILES

[O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5]
Computed by OEChem 2.3.0 (PubChem release 2024.12.12)

2.2 Molecular Formula

O5Ta2
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

1314-61-0
59763-75-6

2.3.2 Deprecated CAS

12653-86-0, 1425543-21-0, 1803311-52-5, 184226-71-9, 53095-18-4

2.3.3 European Community (EC) Number

2.3.4 UNII

2.3.5 DSSTox Substance ID

2.3.6 Wikidata

2.3.7 Wikipedia

2.4 Synonyms

2.4.1 MeSH Entry Terms

  • tantalum oxide
  • tantalum oxide (Ta2O3)
  • tantalum oxide (Ta2O5)
  • tantalum oxide (TaO)
  • tantalum oxide (TaO2)
  • tantalum pentoxide
  • tantalumpentoxide

2.4.2 Depositor-Supplied Synonyms

3 Chemical and Physical Properties

3.1 Computed Properties

Property Name
Molecular Weight
Property Value
441.89 g/mol
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Donor Count
Property Value
0
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Acceptor Count
Property Value
5
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Rotatable Bond Count
Property Value
0
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Exact Mass
Property Value
441.87057 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
441.87057 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
5 Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
7
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
0
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Isotope Atom Count
Property Value
0
Reference
Computed by PubChem
Property Name
Defined Atom Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Undefined Atom Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Defined Bond Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Undefined Bond Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Covalently-Bonded Unit Count
Property Value
7
Reference
Computed by PubChem
Property Name
Compound Is Canonicalized
Property Value
Yes
Reference
Computed by PubChem (release 2021.10.14)

3.2 Experimental Properties

3.2.1 Physical Description

Dry Powder

3.3 SpringerMaterials Properties

5 Chemical Vendors

6 Use and Manufacturing

6.1 Uses

6.1.1 Use Classification

Hazard Classes and Categories -> Flammable - 2nd degree

6.1.2 Industry Uses

  • Not Known or Reasonably Ascertainable
  • Intermediate

6.1.3 Consumer Uses

Not Known or Reasonably Ascertainable

6.2 U.S. Production

Aggregated Product Volume

2019: <1,000,000 lb

2018: <1,000,000 lb

2017: <1,000,000 lb

2016: <1,000,000 lb

6.3 General Manufacturing Information

Industry Processing Sectors
  • Primary Metal Manufacturing
  • Computer and Electronic Product Manufacturing
  • Fabricated Metal Product Manufacturing
EPA TSCA Commercial Activity Status
Tantalum oxide (Ta2O5): ACTIVE

7 Safety and Hazards

7.1 Hazards Identification

7.1.1 GHS Classification

Note
This chemical does not meet GHS hazard criteria for 97.5% (78 of 80) of all reports. Pictograms displayed are for 2.5% (2 of 80) of reports that indicate hazard statements.
GHS Hazard Statements

Not Classified

Reported as not meeting GHS hazard criteria by 78 of 80 companies (only 2.5% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

ECHA C&L Notifications Summary

Aggregated GHS information provided per 80 reports by companies from 3 notifications to the ECHA C&L Inventory.

Reported as not meeting GHS hazard criteria per 78 of 80 reports by companies. For more detailed information, please visit ECHA C&L website.

There are 2 notifications provided by 2 of 80 reports by companies with hazard statement code(s).

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.

7.1.2 Hazard Classes and Categories

Not Classified
Flammable - 2nd degree

7.2 Regulatory Information

The Australian Inventory of Industrial Chemicals
Chemical: Tantalum oxide (Ta2O5)
REACH Registered Substance
New Zealand EPA Inventory of Chemical Status
Tantalum oxide dusts: Does not have an individual approval but may be used under an appropriate group standard

8 Toxicity

8.1 Toxicological Information

8.1.1 Acute Effects

9 Literature

9.1 Consolidated References

9.2 NLM Curated PubMed Citations

9.3 Chemical Co-Occurrences in Literature

9.4 Chemical-Gene Co-Occurrences in Literature

9.5 Chemical-Disease Co-Occurrences in Literature

10 Patents

10.1 Depositor-Supplied Patent Identifiers

10.2 Chemical Co-Occurrences in Patents

10.3 Chemical-Disease Co-Occurrences in Patents

10.4 Chemical-Gene Co-Occurrences in Patents

11 Classification

11.1 MeSH Tree

11.2 ChemIDplus

11.3 UN GHS Classification

11.4 EPA DSSTox Classification

11.5 EPA TSCA and CDR Classification

11.6 EPA Substance Registry Services Tree

11.7 MolGenie Organic Chemistry Ontology

12 Information Sources

  1. Australian Industrial Chemicals Introduction Scheme (AICIS)
  2. CAS Common Chemistry
    LICENSE
    The data from CAS Common Chemistry is provided under a CC-BY-NC 4.0 license, unless otherwise stated.
    https://creativecommons.org/licenses/by-nc/4.0/
  3. ChemIDplus
    ChemIDplus Chemical Information Classification
    https://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
  4. EPA Chemical Data Reporting (CDR)
    LICENSE
    The U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce these documents, or allow others to do so, for U.S. Government purposes. These documents may be freely distributed and used for non-commercial, scientific and educational purposes.
    https://www.epa.gov/web-policies-and-procedures/epa-disclaimers#copyright
  5. EPA Chemicals under the TSCA
    EPA TSCA Classification
    https://www.epa.gov/tsca-inventory
  6. EPA DSSTox
    CompTox Chemicals Dashboard Chemical Lists
    https://comptox.epa.gov/dashboard/chemical-lists/
  7. European Chemicals Agency (ECHA)
    LICENSE
    Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is acknowledged as the source: "Source: European Chemicals Agency, http://echa.europa.eu/". Such acknowledgement must be included in each copy of the material. ECHA permits and encourages organisations and individuals to create links to the ECHA website under the following cumulative conditions: Links can only be made to webpages that provide a link to the Legal Notice page.
    https://echa.europa.eu/web/guest/legal-notice
  8. FDA Global Substance Registration System (GSRS)
    LICENSE
    Unless otherwise noted, the contents of the FDA website (www.fda.gov), both text and graphics, are not copyrighted. They are in the public domain and may be republished, reprinted and otherwise used freely by anyone without the need to obtain permission from FDA. Credit to the U.S. Food and Drug Administration as the source is appreciated but not required.
    https://www.fda.gov/about-fda/about-website/website-policies#linking
  9. New Zealand Environmental Protection Authority (EPA)
    LICENSE
    This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International licence.
    https://www.epa.govt.nz/about-this-site/general-copyright-statement/
  10. NJDOH RTK Hazardous Substance List
  11. SpringerMaterials
  12. Wikidata
  13. Wikipedia
  14. PubChem
  15. Medical Subject Headings (MeSH)
    LICENSE
    Works produced by the U.S. government are not subject to copyright protection in the United States. Any such works found on National Library of Medicine (NLM) Web sites may be freely used or reproduced without permission in the U.S.
    https://www.nlm.nih.gov/copyright.html
  16. GHS Classification (UNECE)
  17. EPA Substance Registry Services
  18. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
CONTENTS