Vanadium(III) chloride

Vanadium(III) chloride
	; Anhydrous
Names
	IUPAC names Vanadium(III) chloride; Vanadium trichloride
Identifiers
CAS Number	7718-98-1 ;
3D model (JSmol)	Interactive image; (hexahydrate): Interactive image;
ChemSpider	10801024 ;
ECHA InfoCard	100.028.859
EC Number	231-744-6;
PubChem CID	62647;
RTECS number	YW2800000;
UN number	2475
CompTox Dashboard (EPA)	DTXSID3064776 ;
	InChI InChI=1S/3ClH.V/h31H;/q;;;+3/p-3 Key: HQYCOEXWFMFWLR-UHFFFAOYSA-K ; InChI=1/3ClH.V/h31H;/q;;;+3/p-3 Key: HQYCOEXWFMFWLR-DFZHHIFOAB;
	SMILES [V+3].[Cl-].[Cl-].[Cl-]; (hexahydrate): O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[V+3];
Properties
Chemical formula	VCl3
Molar mass	157.30 g/mol
Appearance	violet crystals (anhydrous) ; green crystals (hexahydrate)
Density	2.8 g/cm3 (anhydrous) ; 1.84 g/cm3 (hexahydrate)
Melting point	350 °C (662 °F; 623 K) (decomposes, anhydrous)
Solubility in water	soluble
Magnetic susceptibility (χ)	+3030.0·10−6 cm3/mol
Structure
Crystal structure	Trigonal, hR24
Space group	R3, No. 148
Lattice constant	a = 6.012 Å, b = 6.012 Å, c = 17.34 Å α = 90°, β = 90°, γ = 120° (anhydrous)
Thermochemistry
Heat capacity (C)	93.2 J mol−1 K−1
Std molar; entropy (S⦵298)	131.0 J mol−1 K−1
Std enthalpy of; formation (ΔfH⦵298)	-580.7 kJ/mol
Gibbs free energy (ΔfG⦵)	-511.2 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H314
Precautionary statements	P260, P264, P270, P280, P301+P312+P330, P301+P330+P331, P303+P361+P353, P304+P340+P310, P305+P351+P338+P310, P363, P405, P501
NFPA 704 (fire diamond)	3 0 2
Flash point	Non-flammable
Safety data sheet (SDS)	Vanadium(III) Chloride
Related compounds
Other anions	Vanadium(III) fluoride; Vanadium(III) bromide; Vanadium(III) iodide
Other cations	Titanium(III) chloride; Chromium(III) chloride; Niobium(III) chloride; Tantalum(III) chloride
Related compounds	Vanadium(II) chloride; Vanadium(IV) chloride
	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

Vanadium(III) chloride describes the inorganic compound with the formula VCl₃ and its hydrates. It forms a purple anhydrous form and a green hexahydrate [VCl₂(H₂O)₄]Cl·2H₂O. These hygroscopic salts are common precursors to other vanadium(III) complexes and is used as a mild reducing agent.

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