Melting point: |
2468 °C (lit.) |
Boiling point: |
4742 °C (lit.) |
Density |
8.57 g/mL at 25 °C (lit.) |
storage temp. |
-20°C |
solubility |
insoluble in acid solutions |
form |
wire |
color |
Silver-gray |
Specific Gravity |
8.57 |
Resistivity |
13-16 μΩ-cm, 20°C |
Water Solubility |
Insoluble in water. |
Merck |
13,6584 |
Exposure limits |
ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin) OSHA: TWA 3 ppm NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3) |
Stability: |
Stable. Incompatible with strong bases, strong oxidizing agents, halogens, oxygen. |
CAS DataBase Reference |
7440-03-1(CAS DataBase Reference) |
EPA Substance Registry System |
Niobium (7440-03-1) |