Molecular Structure:

IUPAC Name: Dichlorovanadium
Synonyms of Vanadium dichloride (CAS NO.10580-52-6): Vanadium chloride ; Vanadium(2+) dichloride ; Vanadium(II) chloride
InChI: InChI=1/2ClH.V/h2*1H;/q;;+2/p-2
Product Categories: Catalysis and Inorganic Chemistry;Chemical Synthesis;Salts;Vanadium Salts;VanadiumMetal and Ceramic Science
CAS NO: 10580-52-6
Molecular Formula: Cl₂V
Molecular Weight: 121.8475
Enthalpy of Vaporization: 16.15 kJ/mol
Vapour Pressure: 33900 mmHg at 25°C
Melting Point: 910(subl.)
Density: 3.09 g/mL at 25 °C(lit.)

 Vanadium dichloride (CAS NO.10580-52-6) is a powerful reducing species, being able to reduce sulfoxides to sulfides, organic azides to amines, as well as reductively coupling some alkyl halides. Some derivatives have been shown to reduce nitrogen to hydrazine and ammonia.

 Vanadium dichloride (CAS NO.10580-52-6) is prepared by thermal decomposition of VCl₃ to volatile VCl₄, leaving a residue of VCl₂.

Moderately toxic by ingestion. Will react with water or steam to produce toxic and corrosive fumes and explosive hydrogen gas. Platinum accelerates the reaction to violence. When Vanadium dichloride (CAS NO.10580-52-6) is heated to decomposition, it emits toxic fumes of VO_x. See also HYDROCHLORIC ACID, VANADIUM COMPOUNDS, and CHLORIDES.

Hazard Codes C
Risk Statements 20/21/22-34
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed. 
R34: Vanadium dichloride (CAS NO.10580-52-6) causes burns.
Safety Statements 26-27-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S27: Take off immediately all contaminated clothing. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR UN 3260 8/PG 2
WGK Germany 3
RTECS YW1575000
F 3-10
HazardClass 8
PackingGroup III

ACGIH TLV: TWA 0.05 mg(V₂O₅)/m³
NIOSH REL: (Vanadium Compounds) CL 0.05 mg(V)/m³/15M