Zirconium carbide information

Zirconium carbide
Names
	Other names Zirconium(IV) carbide
Identifiers
CAS Number	12070-14-3 ;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.031.920
EC Number	235-125-1;
PubChem CID	11159298;
RTECS number	ZH7155000;
UN number	3178
CompTox Dashboard (EPA)	DTXSID60912099 ;
	SMILES [Zr+]#[C-];
Properties
Chemical formula	ZrC
Molar mass	103.235 g·mol−1
Appearance	Gray refractory solid
Odor	Odorless
Density	6.73 g/cm3 (24 °C)
Melting point	3,532–3,540 °C (6,390–6,404 °F; 3,805–3,813 K)
Boiling point	5,100 °C (9,210 °F; 5,370 K)
Solubility in water	Insoluble
Solubility	Soluble in concentrated H2SO4, HF, HNO3
Structure
Crystal structure	Cubic, cF8
Space group	Fm3m, No. 225
Lattice constant	a = 4.6976(4) Å α = 90°, β = 90°, γ = 90°
Coordination geometry	Octahedral
Thermochemistry
Heat capacity (C)	37.442 J/mol·K
Std molar; entropy (S⦵298)	33.14 J/mol·K
Std enthalpy of; formation (ΔfH⦵298)	−207 kJ/mol (extrapolated to stoichiometric composition); −196.65 kJ/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Pyrophoric
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H228, H302, H312, H332
Precautionary statements	P210, P280
NFPA 704 (fire diamond)	0 0 0
Related compounds
Other anions	Zirconium nitride; Zirconium oxide
Other cations	Titanium carbide; Hafnium carbide; Vanadium carbide; Niobium carbide; Tantalum carbide; Chromium carbide; Molybdenum carbide; Tungsten carbide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Zirconium carbide (ZrC) is an extremely hard refractory ceramic material,^[7] commercially used in tool bits for cutting tools. It is usually processed by sintering.

^ ^a ^b ^c Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
^ ^a ^b Perry, Dale L. (2011). Handbook of Inorganic Compounds (2nd ed.). CRC Press. p. 472. ISBN 978-1-4398-1461-1.
^ ^a ^b ^c ^d Kempter, C. P.; Fries, R. J. (1960). "Crystallographic Data. 189. Zirconium Carbide". Analytical Chemistry. 32 (4): 570. doi:10.1021/ac60160a042.
^ ^a ^b ^c Zirconium carbide in Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD) (retrieved 2014-06-30)
^ Baker, F. B.; Storms, E. K.; Holley, C. E. (1969). "Enthalpy of formation of zirconium carbide". Journal of Chemical & Engineering Data. 14 (2): 244. doi:10.1021/je60041a034.
^ ^a ^b ^c Sigma-Aldrich Co., Zirconium(IV) carbide. Retrieved on 2014-06-30.
^ Measurement and theory of the hardness of transition- metal carbides , especially tantalum carbide. Schwab, G. M.; Krebs, A. Phys.-Chem. Inst., Univ. Muenchen, Munich, Fed. Rep. Ger. Planseeberichte fuer Pulvermetallurgie (1971), 19(2), 91-110

[crc-1] Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.

[hicse-2] Perry, Dale L. (2011). Handbook of Inorganic Compounds (2nd ed.). CRC Press. p. 472. ISBN 978-1-4398-1461-1.

[acs-3] Kempter, C. P.; Fries, R. J. (1960). "Crystallographic Data. 189. Zirconium Carbide". Analytical Chemistry. 32 (4): 570. doi:10.1021/ac60160a042.

[nist-4] Zirconium carbide in Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD) (retrieved 2014-06-30)

[baker-5] Baker, F. B.; Storms, E. K.; Holley, C. E. (1969). "Enthalpy of formation of zirconium carbide". Journal of Chemical & Engineering Data. 14 (2): 244. doi:10.1021/je60041a034.

[sigma-6] Sigma-Aldrich Co., Zirconium(IV) carbide. Retrieved on 2014-06-30.

[7] Measurement and theory of the hardness of transition- metal carbides , especially tantalum carbide. Schwab, G. M.; Krebs, A. Phys.-Chem. Inst., Univ. Muenchen, Munich, Fed. Rep. Ger. Planseeberichte fuer Pulvermetallurgie (1971), 19(2), 91-110

Zirconium carbide information

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