| Formula / Notation | Nb |
|---|---|
| CAS Number | 7440-03-1 |
| Molecular Weight | 92.91 |
| Melting Point | 2477.0 |
| Boiling Point | 4744.0 |
| Density | 8.57 |
| Solubility | Insoluble in water |
| Appearance | Soft, grey, ductile, lustrous metal |
| Also Known As | Nb, columbium, niobium metal |
| Category | Elements |
What is Niobium?
Niobium is a soft, grey, ductile transition metal, atomic number 41. Also called columbium in North America. Most important use is in steel alloys for pipelines and structural steel. Superconducting niobium compounds are used in MRI magnets.
Formula & Notation
IUPAC Name: Niobium
Other Names / Synonyms: Nb, columbium, niobium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 2477.0 |
| Boiling Point | 4744.0 |
| Density | 8.57 |
| Molecular Weight | 92.91 |
| Solubility | Insoluble in water |
| Appearance | Soft, grey, ductile, lustrous metal |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Niobium is a soft, grey, ductile transition metal, atomic number 41. Also called columbium in North America. Most important use is in steel alloys for pipelines and structural steel. Superconducting niobium compounds are used in MRI magnets.
High-strength low-alloy (HSLA) steel for pipelines and construction. Superconducting alloys (Nb-Ti, Nb3Sn) for MRI magnets and particle accelerators. Capacitors (Nb2O5). Aerospace superalloys. Optical glass. Niobium coins.
Niobium metal: low acute toxicity. Niobium dust: moderate respiratory irritant. Niobium compounds: low toxicity. Handle metal dust with standard precautions. No significant environmental concerns at normal exposures.
The formula or notation for Niobium is: Nb