Solid phase
- Official name
- Tantalum nitride
- Secondary names
- Tantalum(III) mononitride; ε-TaN
- CAS number
- 12033-62-4
- Family
- covalent network solid
- Class
- tridimentional covalent network solid
- Compound type
- nitride
- Comments
- denomination from Nobuzo Terao 1971 Jpn. J. Appl. Phys. 10 248 dx.doi.org/10.1143/JJAP.10.248
- Formula
- $Ta^{3+}N^{3-}$
- Chemical formula
- TaN
- Elemental formula
- Ta N
- Isotope mixture type
- terrestrial abundance
- Class
- tridimensional covalent networks (11)
- Type
- one metal and one non-metal (or metalloid) tridimensional networks (11.04)
- Phase name
- ε-TaN
- Phase type
- crystalline
- Crystal system
- hexagonal
- Crystal class
- ditrigonal-dipyramidal
- Crystal class symbol
- -6m2 (D3h)
- Crystal spacegroup
- P-62m
- Molar mass
- 194.955 $g/mol$
- Density
- 14.3 $g/cm^3$
- State NTP
- solid
- Phase transitions
-
Phase transition type Other phases Temperature - Pressure solid-liquid liquid TaN 3090°C (3360 K)
- Refringence type
- uniaxial
- Pure color
- black
- Color
- black
- Diaphaneity
- opaque