Cadmium oxide information

Cadmium oxide
Names
	IUPAC name Cadmium oxide
	Other names Cadmium(II) oxide,; Cadmium monoxide
Identifiers
CAS Number	1306-19-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	14099 ;
ECHA InfoCard	100.013.770
EC Number	215-146-2;
PubChem CID	14782;
RTECS number	EV1925000;
UNII	0H3KWS8KJ3 ;
UN number	2570
CompTox Dashboard (EPA)	DTXSID0024715 ;
	InChI InChI=1S/Cd.O Key: CXKCTMHTOKXKQT-UHFFFAOYSA-N ; InChI=1/Cd.O/rCdO/c1-2 Key: CXKCTMHTOKXKQT-MBQGENNCAM;
	SMILES [Cd]=O;
Properties
Chemical formula	CdO
Molar mass	128.413 g·mol−1
Appearance	colorless powder (alpha form) ; red-brown crystal (beta form)
Odor	odorless
Density	8.15 g/cm3(crystalline),; 6.95 g/cm3 (amorphous) solid.
Melting point	900–1,000 °C (1,650–1,830 °F; 1,170–1,270 K) ; decomposition of amorphous form
Boiling point	1,559 °C (2,838 °F; 1,832 K) sublimation
Solubility in water	4.8 mg/L (18 °C)
Solubility	soluble in dilute acid; slowly soluble in ammonium salts ; insoluble in alkalies
Vapor pressure	0.13 kPa (1000 °C); 2.62 kPa (1200 °C); 61.4 kPa (1500 °C)
Band gap	2.18 eV
Electron mobility	531 cm2/V·s
Magnetic susceptibility (χ)	-3.0·10−5 cm3/mol
Thermal conductivity	0.7 W/m·K
Refractive index (nD)	2.49
Structure
Crystal structure	cubic, cF8
Space group	Fm3m, No. 225
Lattice constant	a = 4.6958 Å
Thermochemistry
Heat capacity (C)	43.64 J/mol·K
Std molar; entropy (S⦵298)	55 J/mol·K
Std enthalpy of; formation (ΔfH⦵298)	−258 kJ/mol
Gibbs free energy (ΔfG⦵)	-229.3 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H330, H341, H350, H361, H372, H410
Precautionary statements	P201, P260, P273, P281, P284, P310
NFPA 704 (fire diamond)	4 0 0
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	72 mg/kg (oral, rat); 72 mg/kg (oral, mouse)
LC50 (median concentration)	500 mg/m3 (rat, 10 min); 2500 mg/m3 (rabbit, 10 min); 3500 mg/m3 (guinea pig, 10 min); 4000 mg/m3 (dog, 10 min); 780 mg/m3 (rat, 10 min); 340 mg/m3 (mouse, 10 min); 3000 mg/m3 (rabbit, 15 min); 3000 mg/m3 (guinea pig, 15 min); 400 mg/m3 (dog, 10 min)
	NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1027] TWA 0.005 mg/m3 (as Cd)
REL (Recommended)	Ca
IDLH (Immediate danger)	Ca [9 mg/m3 (as Cd)]
Safety data sheet (SDS)	[1] [dead link]
Related compounds
Other anions	Cadmium sulfide; Cadmium selenide; Cadmium telluride
Other cations	Zinc oxide; Mercury oxide
	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

Cadmium oxide is an inorganic compound with the formula CdO. It is one of the main precursors to other cadmium compounds. It crystallizes in a cubic rocksalt lattice like sodium chloride, with octahedral cation and anion centers.^[11] It occurs naturally as the rare mineral monteponite. Cadmium oxide can be found as a colorless amorphous powder or as brown or red crystals.^[12] Cadmium oxide is an n-type semiconductor^[13] with a band gap of 2.18 eV (2.31 eV) at room temperature (298 K).^[14]

^ Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. ISBN 0-07-049439-8.
^ "NIOSH Pocket Guide to Chemical Hazards". Retrieved 2007-02-16.
^ ^a ^b "INCHEM: Chemical Safety Information from Intergovernmental Organizations". Retrieved 2007-02-16.
^ ^a ^b ^c "Cadmium oxide".
^ ^a ^b Cadmium oxide 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 2014-05-23)
^ ^a ^b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21. ISBN 978-0-618-94690-7.
^ ^a ^b ^c Sigma-Aldrich Co., Cadmium oxide. Retrieved on 2014-05-23.
^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).
^ https://chem.nlm.nih.gov/chemidplus/rn/1306-19-0 ^{[dead link]}
^ ^a ^b "Cadmium compounds (as Cd)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^ Wells, A.F. (1984) Structural Inorganic Chemistry, Oxford: Clarendon Press. ISBN 0-19-855370-6.
^ Lewis, Richard J. Sr., Hawley's condensed chemical dictionary, 13th ed., 1997, p. 189
^ T. L. Chu; Shirley S. Chu (1990). "Degenerate cadmium oxide films for electronic devices". Journal of Electronic Materials. 19 (9): 1003–1005. Bibcode:1990JEMat..19.1003C. doi:10.1007/BF02652928. S2CID 95361658.
^ S. K. Vasheghani Farahani; et al. (2013). "Temperature dependence of the direct bandgap and transport properties of CdO". Applied Physics Letters. 102 (2): 022102. Bibcode:2013ApPhL.102b2102V. doi:10.1063/1.4775691.

[1] Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. ISBN 0-07-049439-8.

[NIOSH_sheet-2] "NIOSH Pocket Guide to Chemical Hazards". Retrieved 2007-02-16.

[INCHEM_sheet-3] "INCHEM: Chemical Safety Information from Intergovernmental Organizations". Retrieved 2007-02-16.

[chemister-4] "Cadmium oxide".

[nist-5] Cadmium oxide 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 2014-05-23)

[b1-6] Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21. ISBN 978-0-618-94690-7.

[sigma-7] Sigma-Aldrich Co., Cadmium oxide. Retrieved on 2014-05-23.

[PGCH-8] NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).

[9] ttps://chem.nlm.nih.gov/chemidplus/rn/1306-19-0 ^{[dead link]}

[IDLH-10] "Cadmium compounds (as Cd)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[11] Wells, A.F. (1984) Structural Inorganic Chemistry, Oxford: Clarendon Press. ISBN 0-19-855370-6.

[Lewis,_Richard_J._1997,_p._189-12] Lewis, Richard J. Sr., Hawley's condensed chemical dictionary, 13th ed., 1997, p. 189

[13] T. L. Chu; Shirley S. Chu (1990). "Degenerate cadmium oxide films for electronic devices". Journal of Electronic Materials. 19 (9): 1003–1005. Bibcode:1990JEMat..19.1003C. doi:10.1007/BF02652928. S2CID 95361658.

[14] S. K. Vasheghani Farahani; et al. (2013). "Temperature dependence of the direct bandgap and transport properties of CdO". Applied Physics Letters. 102 (2): 022102. Bibcode:2013ApPhL.102b2102V. doi:10.1063/1.4775691.

Cadmium oxide information

and 26 Related for: Cadmium oxide information

Cadmium oxide

Cadmium

Indium tin oxide

Cadmium chloride

Cadmium sulfide

Zinc oxide

Cadmium nitrate

Cadmium hydroxide

Plating

Magnesium oxide

Cadmium telluride photovoltaics

Cadmium selenide

Cadmium poisoning

List of inorganic compounds

Metal fume fever

Transparent conducting film

Cadmium telluride

Median lethal dose

EPA list of extremely hazardous substances

Cadmium acetate

List of inorganic pigments

Contactor

Cadmium stearate

Cadmium nitride

Standard enthalpy of formation

Mercury battery

Names


IUPAC name Cadmium oxide
Other names Cadmium(II) oxide, Cadmium monoxide
Identifiers
CAS Number	1306-19-0^Y
3D model (JSmol)	Interactive image
ChemSpider	14099^Y
ECHA InfoCard	100.013.770
EC Number	215-146-2
PubChem CID	14782
RTECS number	EV1925000
UNII	0H3KWS8KJ3^Y
UN number	2570
CompTox Dashboard (EPA)	DTXSID0024715
InChI InChI=1S/Cd.O^Y Key: CXKCTMHTOKXKQT-UHFFFAOYSA-N^Y InChI=1/Cd.O/rCdO/c1-2 Key: CXKCTMHTOKXKQT-MBQGENNCAM
SMILES [Cd]=O
Properties
Chemical formula	CdO
Molar mass	128.413 g·mol⁻¹
Appearance	colorless powder (alpha form) red-brown crystal (beta form) ^[1]
Odor	odorless
Density	8.15 g/cm³(crystalline), 6.95 g/cm³ (amorphous)^[2] solid.
Melting point	900–1,000 °C (1,650–1,830 °F; 1,170–1,270 K) decomposition of amorphous form^[3]
Boiling point	1,559 °C (2,838 °F; 1,832 K) sublimation^[3]
Solubility in water	4.8 mg/L (18 °C)^[4]
Solubility	soluble in dilute acid slowly soluble in ammonium salts insoluble in alkalies
Vapor pressure	0.13 kPa (1000 °C) 2.62 kPa (1200 °C) 61.4 kPa (1500 °C)^[5]
Band gap	2.18 eV
Electron mobility	531 cm²/V·s
Magnetic susceptibility (χ)	-3.0·10⁻⁵ cm³/mol
Thermal conductivity	0.7 W/m·K
Refractive index (n_D)	2.49
Structure
Crystal structure	cubic, cF8
Space group	Fm3m, No. 225
Lattice constant	a = 4.6958 Å
Thermochemistry
Heat capacity (C)	43.64 J/mol·K^[4]
Std molar entropy (S^⦵₂₉₈)	55 J/mol·K^[6]
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	−258 kJ/mol^[5]^[6]
Gibbs free energy (Δ_fG^⦵)	-229.3 kJ/mol^[4]
Hazards
GHS labelling:
Pictograms	^[7]
Signal word	Danger
Hazard statements	H330, H341, H350, H361, H372, H410^[7]
Precautionary statements	P201, P260, P273, P281, P284, P310^[7]
NFPA 704 (fire diamond)	4 0 0
Flash point	Non-flammable
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	72 mg/kg (oral, rat)^[9] 72 mg/kg (oral, mouse)^[10]
LC₅₀ (median concentration)	500 mg/m³ (rat, 10 min) 2500 mg/m³ (rabbit, 10 min) 3500 mg/m³ (guinea pig, 10 min) 4000 mg/m³ (dog, 10 min) 780 mg/m³ (rat, 10 min) 340 mg/m³ (mouse, 10 min) 3000 mg/m³ (rabbit, 15 min) 3000 mg/m³ (guinea pig, 15 min) 400 mg/m³ (dog, 10 min)^[10]
NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1027] TWA 0.005 mg/m³ (as Cd)^[8]
REL (Recommended)	Ca^[8]
IDLH (Immediate danger)	Ca [9 mg/m³ (as Cd)]^[8]
Safety data sheet (SDS)	[1] ^{[dead link]}
Related compounds
Other anions	Cadmium sulfide Cadmium selenide Cadmium telluride
Other cations	Zinc oxide Mercury oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references