Cadmium fluoride

Cadmium fluoride
Names
	IUPAC name Cadmium fluoride
	Other names Cadmium(II) fluoride, Cadmium difluoride
Identifiers
CAS Number	7790-79-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	23036 ;
ECHA InfoCard	100.029.293
EC Number	232-222-0;
PubChem CID	24634; 71356118 dihydrate;
UNII	M0975E7Z8Z ;
CompTox Dashboard (EPA)	DTXSID6064878 ;
	InChI InChI=1S/Cd.2FH/h;21H/q+2;;/p-2 Key: LVEULQCPJDDSLD-UHFFFAOYSA-L ; InChI=1/Cd.2FH/h;21H/q+2;;/p-2 Key: LVEULQCPJDDSLD-NUQVWONBAG;
	SMILES [Cd+2].[F-].[F-];
Properties
Chemical formula	CdF2
Molar mass	150.41 g/mol
Appearance	grey or white-grey crystals
Density	6.33 g/cm3, solid
Melting point	1,110 °C (2,030 °F; 1,380 K)
Boiling point	1,748 °C (3,178 °F; 2,021 K)
Solubility in water	4.35 g/100 mL
Solubility product (Ksp)	0.00644
Solubility	soluble in acid; insoluble in ethanol alcohol and liquid ammonia
Magnetic susceptibility (χ)	-40.6·10−6 cm3/mol
Structure
Crystal structure	Fluorite (cubic), cF12
Space group	Fm3m, No. 225
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-167.39 ± 0.23 kcal. mole-1 at 298.15 (K, C?)
Gibbs free energy (ΔfG⦵)	-155.4 ± 0.3 kcal. mole-1 at 298.15 (K, C?)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H330, H340, H350, H360, H372, H410
Precautionary statements	P201, P202, P260, P264, P270, P271, P273, P281, P284, P301+P310, P304+P340, P308+P313, P310, P314, P320, P321, P330, P391, P403+P233, P405, P501
	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)]
Related compounds
Other anions	Cadmium chloride,; Cadmium bromide; Cadmium iodide
Other cations	Zinc fluoride,; Mercury(II) fluoride,; Copper(II) fluoride,; Silver(II) fluoride,; Calcium fluoride,; Magnesium fluoride
	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 fluoride (CdF₂) is a mostly water-insoluble source of cadmium used in oxygen-sensitive applications, such as the production of metallic alloys. In extremely low concentrations (ppm), this and other fluoride compounds are used in limited medical treatment protocols. Fluoride compounds also have significant uses in synthetic organic chemistry.^[3] The standard enthalpy has been found to be -167.39 kcal. mole⁻¹ and the Gibbs energy of formation has been found to be -155.4 kcal. mole⁻¹, and the heat of sublimation was determined to be 76 kcal. mole⁻¹.^[4]^[5]

^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–188. ISBN 978-1138561632.
^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).
^ "Cadmium Fluoride". Retrieved 2009-06-06.
^ Rudzitis, Edgars; Feder, Harold; Hubbard, Ward (November 1963). "Fluorine Bomb Calorimetry. VII. The Heat of Formation of Cadmium Difluoride". Journal of Physical Chemistry. 67 (11): 2388–2390. doi:10.1021/j100805a031.
^ Besenbruch, G.; Kana'an, A. S.; Margrave, J. L. (March 3, 1965). "Knudson and Langmuir Measurements of the Sublimation Pressure of Cadmium (II) Fluoride". Journal of Physical Chemistry. 69 (9): 3174–3176. doi:10.1021/j100893a505.

[crc-1] John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–188. ISBN 978-1138561632.

[PGCH-2] NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).

[3] "Cadmium Fluoride". Retrieved 2009-06-06.

[4] Rudzitis, Edgars; Feder, Harold; Hubbard, Ward (November 1963). "Fluorine Bomb Calorimetry. VII. The Heat of Formation of Cadmium Difluoride". Journal of Physical Chemistry. 67 (11): 2388–2390. doi:10.1021/j100805a031.

[5] Besenbruch, G.; Kana'an, A. S.; Margrave, J. L. (March 3, 1965). "Knudson and Langmuir Measurements of the Sublimation Pressure of Cadmium (II) Fluoride". Journal of Physical Chemistry. 69 (9): 3174–3176. doi:10.1021/j100893a505.

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