Solid phase
Official name
Tantalum carbide
Secondary names
Tantalum(IV) carbide; Tantalcarbide
CAS number
12070-06-3
Type
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
carbide
Chemical composition
Formula
$Ta^{4+}C^{4-}$
Chemical formula
TaC
Elemental formula
Ta C
Isotope mixture type
terrestrial abundance
4.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Ta$ Tantalum element 1 0.5 1 constituent element main
$C$ Carbon element 1 0.5 1 constituent element main
Class
tridimensional covalent networks (11)
Type
one metal and one non-metal (or metalloid) tridimensional networks (11.04)
Phase type
crystalline
Crystal system
isometric (cubic)
Crystal class
hexoctahedral
Crystal class symbol
m-3m (Oh)
Crystal spacegroup
Fm-3m
Molar mass
192.96 $g/mol$
Density
14.37 (calc.) - 14.6 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid TaC 3768°C (4041 K)
Refringence type
isotropic
Pure color
brown
Color
brown-grey, bronze
Diaphaneity
opaque
Luster
metallic
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