| 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) |