Grundinformationen
- Standard-SMILES
[O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5]- InChIKey
BPUBBGLMJRNUCC-UHFFFAOYSA-N- Summenformel
- O5Ta2
- Durchschnittliche Molmasse
- 441,89 g/mol
- Monoisotopische Masse
- 441,8705647
Namen und Bezeichner
- Bevorzugter Name
- Tantalum pentoxide
- IUPAC
- pentakis(oxygen(2-));bis(tantalum(5+))
- Lokaler Name
- Ditantalpentaoxid
- Englischer Name
- Tantalum pentoxide
- Summenformel
- O5Ta2
- Molmasse
- 441.89
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
1314-61-0、59763-75-6- PubChem CID
- 62157
- DTXSID
DTXSID10893849- UNII
- OEZ64Z53M4
- EC Number
- 215-238-2
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 5 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 5
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 7
- Formalladung
- 0
- Komplexität
- 0
Experimentelle und physikochemische Eigenschaften
Physikochemische Eigenschaften
- Schmelzpunkt
- 1872 °C · 1872 °C
- Dichte
- 8.2 g/mL · 8.2 g/mL at 25 °C(lit.)
- storage temp.
- Sealed in dry,Room Temperature
- Löslichkeit
- 2 O, · insoluble in H2O, ethanol, acid solutions; sHF
- Aggregatzustand
- lumps
- Farbe
- White to white-beige
- Wichte
- 8.2 · 8.2
- Wasserlöslichkeit
- Insoluble in water.
- Spezifische Wärmekapazität
- 0.31 J/ · Cp(crystal): 0.31 J/(g·K), at 25℃
- Merck
- 14 · 14,9056
- Dielectric constant
- 11.6 · 11.6(Ambient)
- InChI
- InChI=1S/5O.2Ta
- InChIKey
- PBCFLUZVCVVTBY-UHFFFAOYSA-N
- SMILES
- [Ta](=O)(=O)O[Ta](=O)=O
- CAS Datenbank
- 1314 · 1314-61-0(CAS DataBase Reference)
- EPA chemische Informationen
- Tantalum oxide (Ta2O5) (1314-61-0)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 97.5% (78 of 80) of all reports.
Not Classified
Aggregated GHS information provided per 80 reports by companies from 3 notifications to the ECHA C&L Inventory.
Gefahrenhinweise
Regulatory Information
Chemical: Tantalum oxide (Ta2O5)
Tantalum oxide (Ta2O5) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Tantalum oxide (Ta2O5) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 03-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13430
Tantalum oxide dusts: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Hazard Classes and Categories
Not Classified
Flammable agents - 2nd degree
Sicherheit und Schutzausrüstung
Protective Action Criteria (PAC)
10 [mg/m3]
260 [mg/m3]
1600 [mg/m3]
Sicherheitsdaten
- wgk
- -
- tsca
- TSCA listed
- hs_code
- 28259085
- RTECS-Nr.
- WW5855000
- risk_code
- 36/37/38
- Toxizität
- LD50 orally in rats: 8000 mg/kg (Cochran)
- hazard_code
- Xi
- safety_code
- 37/39-26
- Speicherklasse
- 11 - Combustible Solids
Chemie und Industrie
Verwendung und Herstellung
General Manufacturing Information
Computer and Electronic Product Manufacturing
Tantalum oxide (Ta2O5): ACTIVE
Anwendungen
VerwendenTantalum pentoxide is used in making high refractive index optical glass; as a dielectric film on tantalum for its use as a capacitor component and rectifier; and for preparing tantalum metal, its carbide, and many other tantalum compounds.
Darstellung
synthetischeTantalum pentoxide is obtained as an intermediate in extracting tantalum from the columbite-tantalite series of minerals. Also, the oxide can be made by heating Ta metal in oxygen or air at elevated temperatures.
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