ChemicalBook > CAS DataBase List > Tantalum pentoxide
Tantalum pentoxide
- Product Name
- Tantalum pentoxide
- CAS No.
- 1314-61-0
- Chemical Name
- Tantalum pentoxide
- Synonyms
- TANTALUM OXIDE;TANTALUM(V) OXIDE;Ta2-O5;tantalic oxide;Tantalum(Ⅴ)oxide;TANTALUM(+5)OXIDE;tatalum pentoxide;Ditantalpentaoxid;TANTALUM PENTOXIDE;tantalumpentaoxide
- CBNumber
- CB1282629
- Molecular Formula
- O5Ta2
- Formula Weight
- 441.89
- MOL File
- 1314-61-0.mol
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Tantalum pentoxide Property
- Melting point:
- 1872 °C
- Density
- 8.2 g/mL at 25 °C(lit.)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- insoluble in H2O, ethanol, acid solutions; sHF
- form
- lumps
- color
- White to white-beige
- Specific Gravity
- 8.2
- Resistivity
- 1.0 ∞ 10*12 (ρ/μΩ.cm)
- Water Solubility
- Insoluble in water.
- Crystal Structure
- Trigonal
- Merck
- 14,9056
- crystal system
- Nogata
- Space group
- Pmm2
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 0.3888 4.029 0.6198 90 90 90 0.9709 - Dielectric constant
- 11.6（Ambient）
- Exposure limits
- OSHA: TWA 5 mg/m3
NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 - InChI
- InChI=1S/5O.2Ta
- InChIKey
- PBCFLUZVCVVTBY-UHFFFAOYSA-N
- SMILES
- [Ta](=O)(=O)O[Ta](=O)=O
- CAS DataBase Reference
- 1314-61-0(CAS DataBase Reference)
- EPA Substance Registry System
- Tantalum oxide (Ta2O5) (1314-61-0)
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H320Causes eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P337+P313IF eye irritation persists: Get medical advice/attention.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 204536
- Product name
- Tantalum(V) oxide
- Purity
- <20 μm, 99.99% trace metals basis
- Packaging
- 10g
- Price
- $117
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 204536
- Product name
- Tantalum(V) oxide
- Purity
- <20 μm, 99.99% trace metals basis
- Packaging
- 50g
- Price
- $415
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- 010881
- Product name
- Tantalum(V) oxide, Puratronic?, 99.993% (metals basis excluding Nb)
- Purity
- Nb 50ppm max
- Packaging
- 100g
- Price
- $529
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- 010881
- Product name
- Tantalum(V) oxide, Puratronic?, 99.993% (metals basis excluding Nb)
- Purity
- Nb 50ppm max
- Packaging
- 25g
- Price
- $161
- Updated
- 2023/06/20
Strem Chemicals
- Product number
- 73-2000
- Product name
- Tantalum(V) oxide, 99.8% (99.95+%-Ta)
- Packaging
- 25g
- Price
- $89
- Updated
- 2024/03/01
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Tantalum pentoxide Chemical Properties,Usage,Production
Chemical Properties
white to white-beige powder
Chemical Properties
Tantalum pentoxide, Ta2O5, is a white powder existing in two thermodynamically stable modifications. The orthorombic b-phase changes at 1,360 °C (2,480 °F) into the tetragonal a-modification. The existence of an e-modification has also been reported. Tantalum pentoxide reacts slowly with hot hydrofluoric acid but is insoluble in water and in most solutions of acids and alkalies. For analytical purposes, it can be dissolved by fusion with alkali hydroxides, alkali carbonates, and potassium pyrosulfate.
Physical properties
White orthorhombic crystal or powder; density 8.20 g/cm3; melts at 1,785°C; insoluble in water, ethanol and practically all acids; soluble in hydrofluoric acid; solubilized by fusion with caustic potash or potassium hydrogen sulfate.
Physical properties
Dielectric used in film supercapacitors. Tantalum oxide is a high-refractiveindex, low-absorption material used in making optical coatings in the near-UV (350 nm) to IR (8 μm). Insoluble in most chemicals except HF, HF-HNO3 mixtures, oleum, fused alkali hydroxides (e.g., NaOH, KOH), and molten pyrosulfates.
Uses
Tantalum oxide is used to make optical glass for lenses and in electronic circuits.
Uses
Tantalum 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.
Uses
Tantalum pentoxide (Ta2O5) is used to make special optical glass, for lasers, and in electronic circuits.
Preparation
Tantalum 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.
General Description
Tantalum pentoxide is dielectric in nature making it useful for making capacitors in the electronics industry.
Hazard
TLV: 5 mg/m3.
Flammability and Explosibility
Non flammable
Safety Profile
Mildly toxic by ingestion. Incompatible with ClF3, BrF3, Li. See also TANTALUM.
Tantalum pentoxide Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Tantalum pentoxide manufacturers
Shaanxi Dideu Medichem Co. Ltd
- Product
- Tantalum pentoxide 1314-61-0
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.0%
- Supply Ability
- 10000KG
- Release date
- 2024-09-04
Beijing Rehoboth New Materials Co., Ltd
- Product
- Ta2O5 1314-61-0
- Price
- US $550.00-5000.00/Kg
- Min. Order
- 1Kg
- Purity
- 99.99%
- Supply Ability
- 20ton
- Release date
- 2024-05-15
henan kanbei chemical co.,ltd
- Product
- Tantalum pentoxide 1314-61-0
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000kg
- Release date
- 2022-09-27
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