Solid phase
- Official name
- Synthetic Niobium
- CAS number
- 7440-03-1
- Family
- metallic solid
- Class
- true metal
- Compound type
- metal
- Formula
- $Nb$
- Chemical formula
- Nb
- Elemental formula
- Nb
- Isotope mixture type
- terrestrial abundance
- Class
- true metals (13)
- Type
- homovalent monolayer metals (13.01)
- Phase type
- crystalline
- Crystal system
- isometric (cubic)
- Crystal class
- hexoctahedral
- Crystal class symbol
- m-3m (Oh)
- Crystal spacegroup
- Im-3m
- Molar mass
- 92.906 $g/mol$
- Density
- 8.57 $g/cm^3$
- State NTP
- solid
- Phase transitions
-
Phase transition type Other phases Temperature - Pressure solid-liquid liquid 2750 K (2477 °C)
- Refringence type
- isotropic
- Pure color
- gray
- Color
- gray
- Diaphaneity
- opaque
- Luster
- metallic