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
- Molecular Weight:
- 441.89
- MOL File:
- 1314-61-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/9/4 16:41:41
| 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 |
|
||||||||||||||
| 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) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H320 | |||||||||
| Precautionary statements | P264-P337+P313-P305+P351+P338 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 37/39-26 | |||||||||
| WGK Germany | - | |||||||||
| RTECS | WW5855000 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 28259085 | |||||||||
| Toxicity | LD50 orally in rats: 8000 mg/kg (Cochran) | |||||||||
| NFPA 704 |
|
Tantalum pentoxide price More Price(27)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 757373 | Tantalum(V) oxide tablet, deposition grade, 99.99% trace metals basis | 1314-61-0 | 1EA | ₹4405.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 303518 | Tantalum(V) oxide 99% trace metals basis | 1314-61-0 | 25G | ₹10186.33 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 697222 | Tantalum(V) oxide ?60?mesh, 99.5% | 1314-61-0 | 25G | ₹12567.83 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 303518 | Tantalum(V) oxide 99% trace metals basis | 1314-61-0 | 100G | ₹26337.23 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 204536 | Tantalum(V) oxide <20?μm, 99.99% trace metals basis | 1314-61-0 | 10G | ₹11182.23 | 2022-06-14 | Buy |
Tantalum pentoxide Chemical Properties,Uses,Production
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 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.
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.
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
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Osrics Pharmachem Pvt Ltd (Suryansh Group) | +91-1722268435 +91-9876082829 | Punjab, India | 21 | 58 | Inquiry |
| Star Earth Minerals Pvt Ltd | +91-9594153555 +91-9594775679 | Maharashtra, India | 45 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6160 | 58 | Inquiry |
| LOBA CHEMIE PVT.LTD. | 91-22-6663 6699 | Mumbai, India | 3077 | 58 | Inquiry |
| Geomin Metalloy Private Limited | 07942535101 | Madhya Pradesh, India | 2 | 58 | Inquiry |
| Star Earth Minerals Private Limited | 08046065133 | Mumbai, India | 35 | 58 | Inquiry |
| Metallurgical Products India Private Limited | 08048372727Ext 712 | Maharashtra, India | 2 | 58 | Inquiry |
Related articles
- Structure and Properties of Tantalum Pentoxide
- Tantalum pentoxide is disordered, being either amorphous or polycrystalline. It has at least 2 polymorphs exist. A low tempera....
- Mar 29，2024
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