[(dioxotantalio)oxy]dioxotantalum

• ChemBase ID: 129700
• Molecular Formular: O5Ta2
• Molecular Mass: 441.8928
• Monoisotopic Mass: 441.8705631
• SMILES: O=[Ta](=O)O[Ta](=O)=O
• Canonical SMILES: O=[Ta](=O)O[Ta](=O)=O
• InChI: InChI=1S/5O.2Ta
• InChIKey: PBCFLUZVCVVTBY-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: [(dioxotantalio)oxy]dioxotantalum
• IUPAC Traditional name: [(dioxotantalio)oxy]dioxotantalum; tantalum pentoxide
• Synonyms: Tantalum pentoxide; Tantalum(V) oxide, Spectrographic Grade; Tantalum pentoxide; Tantalum(V) oxide; Tantalum(V) oxide, Puratronic®; 五氧化二钽(V), 光谱级; 五氧化钽; 氧化钽(V); 五氧化二钽(V), Puratronic®; 五氧化二钽(V)

Database IDs

• CAS Number: 1314-61-0
• EC Number: 215-238-2
• MDL Number: MFCD00011254
• Merck Index: 149056
• PubChem SID: 162223989; 24852274; 24858127
• PubChem CID: 518172; 518712
• Wikipedia Title: Tantalum_pentoxide

CALCULATED PROPERTIES

• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): -1.1344
• LogD (pH = 7.4): -1.1344
• Log P: -1.1344
• Molar Refractivity: 7.1218 cm^3
• Polarizability: 18.560326 Å^3
• Polar Surface Area: 77.51 Å^2
• Rotatable Bonds: 2
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: insoluble in ethanol, most acid ; soluble in hot conc.HF; Insoluble in water, alcohol, mineral acids. Soluble in HF; negligible in water
• Apperance: 3-12mm Sintered Lump; -325 Mesh Powder; powder; Powder; white, odorless powder
• Melting Point: 1800°C
• Density: 8.2; 8.2 g/mL at 25 °C(lit.); 8.20 g/cm^3
• Refractive Index: 2.275

Safety Information

• RTECS: WW5855000
• German water hazard class: 3
• TSCA Listed: 是
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

Product Information

• Purity: 99% (metals basis); 99% trace metals basis; 99.5%; 99.5% (metals basis); 99.85% (metals basis); 99.95% (metals basis excluding Nb), Nb 0.1-1%; 99.99% trace metals basis; 99.993% (metals basis excluding Nb), Nb 50ppm max
• Particle Size: <20 μm; -60 mesh
• Linear Formula: Ta2O5

DETAILS

Sigma Aldrich - 303518

Packaging
100 g in poly bottle
25 g in glass bottle

Sigma Aldrich - 697222

Packaging
25 g in glass bottle

Sigma Aldrich - 204536

Packaging
10, 50 g in poly bottle