Aluminium fluoride

Aluminium fluoride
	Anhydrous AlF3
Names
	Other names Aluminium(III) fluoride; Aluminum trifluoride
Identifiers
CAS Number	7784-18-1 ; 32287-65-3 (monohydrate) ; 15098-87-0 (trihydrate) ;
3D model (JSmol)	monomer: Interactive image; crystal form: Interactive image;
ChEBI	CHEBI:49464 ;
ChemSpider	2039 ;
ECHA InfoCard	100.029.137
PubChem CID	2124;
RTECS number	BD0725000;
UNII	Z77H3IKW94 ;
CompTox Dashboard (EPA)	DTXSID8030712 ;
	InChI InChI=1S/Al.3FH/h;31H/q+3;;;/p-3 Key: KLZUFWVZNOTSEM-UHFFFAOYSA-K ; InChI=1/Al.3FH/h;31H/q+3;;;/p-3 Key: KLZUFWVZNOTSEM-DFZHHIFOAC;
	SMILES monomer: F[Al](F)F; crystal form: F[Al](F[Al]0(F)(F)(F)F)(F[Al]1(F)(F)(F)F)(F[Al]2(F)(F)(F)F)(F[Al]3(F)(F)(F)F)F[Al](F[Al](F[Al]4(F)(F)(F)F)(F[Al]5(F)(F)(F)F)(F[Al]6(F)(F)(F)F)(F0)F)(F[Al](F[Al]7(F)(F)(F)F)(F[Al]8(F)(F)(F)F)(F1)(F4)F)(F[Al](F[Al]9(F)(F)(F)F)(F[Al]0(F)(F)(F)F)(F5)(F7)F)(F[Al](F[Al]1(F)(F)(F)F)(F2)(F8)(F9)F)F[Al](F3)(F6)(F0)(F1)F;
Properties
Chemical formula	AlF3
Molar mass	83.977 g/mol (anhydrous); 101.992 g/mol (monohydrate); 138.023 (trihydrate);
Appearance	Colorless to white crystalline solid
Odor	Odorless
Density	3.10 g/cm3 (anhydrous); 2.17 g/cm3 (monohydrate); 1.914 g/cm3 (trihydrate);
Melting point	1,290 °C (2,350 °F; 1,560 K) (anhydrous) (sublimes)
Solubility in water	5.6 g/L (0 °C); 6.7 g/L (20 °C); 17.2 g/L (100 °C);
Magnetic susceptibility (χ)	−13.4×10−6 cm3/mol
Refractive index (nD)	1.3767 (visible range)
Structure
Crystal structure	Rhombohedral, hR24
Space group	R3c, No. 167
Lattice constant	a = 0.49254 nm, c = 1.24477 nm
Lattice volume (V)	0.261519
Formula units (Z)	6
Thermochemistry
Heat capacity (C)	75.1 J/(mol·K)
Std molar; entropy (S⦵298)	66.5 J/(mol·K)
Std enthalpy of; formation (ΔfH⦵298)	−1510.4 kJ/mol
Gibbs free energy (ΔfG⦵)	−1431.1 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H302, H314, H315, H319, H335, H361, H372
Precautionary statements	P260, P261, P264, P270, P271, P280, P301+P310, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 0 0
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	2 mg/m3
IDLH (Immediate danger)	N.D.
Safety data sheet (SDS)	InChem MSDS
Related compounds
Other anions	Aluminium chloride; Aluminium bromide; Aluminium iodide;
Other cations	Boron trifluoride; Gallium trifluoride; Indium trifluoride; Thallium trifluoride;
Related compounds	Scandium(III) fluoride; Yttrium(III) fluoride; Lutetium(III) fluoride; Lanthanum(III) fluoride; Cerium(III) fluoride; Actinium(III) 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

Aluminium fluoride is an inorganic compound with the formula Al F₃. It forms hydrates AlF₃·xH₂O. Anhydrous AlF₃ and its hydrates are all colorless solids. Anhydrous AlF₃ is used in the production of aluminium. Several occur as minerals.

Names
Anhydrous AlF₃
Other names Aluminium(III) fluoride Aluminum trifluoride
Identifiers
CAS Number	7784-18-1^Y 32287-65-3 (monohydrate)^Y 15098-87-0 (trihydrate)^Y
3D model (JSmol)	monomer: Interactive image crystal form: Interactive image
ChEBI	CHEBI:49464^Y
ChemSpider	2039^Y
ECHA InfoCard	100.029.137
PubChem CID	2124
RTECS number	BD0725000
UNII	Z77H3IKW94^Y
CompTox Dashboard (EPA)	DTXSID8030712
InChI InChI=1S/Al.3FH/h;31H/q+3;;;/p-3^Y Key: KLZUFWVZNOTSEM-UHFFFAOYSA-K^Y InChI=1/Al.3FH/h;31H/q+3;;;/p-3 Key: KLZUFWVZNOTSEM-DFZHHIFOAC
SMILES monomer: F[Al](F)F crystal form: F[Al](F[Al]0(F)(F)(F)F)(F[Al]1(F)(F)(F)F)(F[Al]2(F)(F)(F)F)(F[Al]3(F)(F)(F)F)F[Al](F[Al](F[Al]4(F)(F)(F)F)(F[Al]5(F)(F)(F)F)(F[Al]6(F)(F)(F)F)(F0)F)(F[Al](F[Al]7(F)(F)(F)F)(F[Al]8(F)(F)(F)F)(F1)(F4)F)(F[Al](F[Al]9(F)(F)(F)F)(F[Al]0(F)(F)(F)F)(F5)(F7)F)(F[Al](F[Al]1(F)(F)(F)F)(F2)(F8)(F9)F)F[Al](F3)(F6)(F0)(F1)F
Properties
Chemical formula	AlF₃
Molar mass	83.977 g/mol (anhydrous) 101.992 g/mol (monohydrate) 138.023 (trihydrate)
Appearance	Colorless to white crystalline solid
Odor	Odorless
Density	3.10 g/cm³ (anhydrous) 2.17 g/cm³ (monohydrate) 1.914 g/cm³ (trihydrate)
Melting point	1,290 °C (2,350 °F; 1,560 K) (anhydrous) (sublimes)
Solubility in water	5.6 g/L (0 °C) 6.7 g/L (20 °C) 17.2 g/L (100 °C)
Magnetic susceptibility (χ)	−13.4×10⁻⁶ cm³/mol
Refractive index (n_D)	1.3767 (visible range)
Structure
Crystal structure	Rhombohedral, hR24
Space group	R3c, No. 167
Lattice constant	a = 0.49254 nm, c = 1.24477 nm
Lattice volume (V)	0.261519
Formula units (Z)	6
Thermochemistry
Heat capacity (C)	75.1 J/(mol·K)
Std molar entropy (S^⦵₂₉₈)	66.5 J/(mol·K)
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	−1510.4 kJ/mol
Gibbs free energy (Δ_fG^⦵)	−1431.1 kJ/mol
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H302, H314, H315, H319, H335, H361, H372
Precautionary statements	P260, P261, P264, P270, P271, P280, P301+P310, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 0 0
NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	2 mg/m³
IDLH (Immediate danger)	N.D.
Safety data sheet (SDS)	InChem MSDS
Related compounds
Other anions	Aluminium chloride Aluminium bromide Aluminium iodide
Other cations	Boron trifluoride Gallium trifluoride Indium trifluoride Thallium trifluoride
Related compounds	Scandium(III) fluoride Yttrium(III) fluoride Lutetium(III) fluoride Lanthanum(III) fluoride Cerium(III) fluoride Actinium(III) fluoride
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