VANADIUM(II) CHLORIDE Chemical Properties

Melting point:

910(subl.)

Boiling point:

910°C

Density 

3.09 g/mL at 25 °C(lit.)

solubility 

reacts with H2O; soluble in ethanol,ethyl ether

form 

green hexagonal plates

color 

green hexagonal, hexane plates

Water Solubility 

decomposed in hot H2O; soluble alcohol, ether [HAW93]

Crystal Structure

CdI2 type

crystal system

Three sides

Space group

P3m1

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.3601	0.3601	0.5835	90	90	120	0.0655

Safety Information

Hazard Codes 

C

Risk Statements 

20/21/22-34-22

Safety Statements 

26-27-36/37/39-45

RIDADR 

UN 3260 8/PG 2

WGK Germany 

3

RTECS 

YW1575000

F 

3-10

HazardClass 

8

PackingGroup 

III

HS Code 

2827398590

MSDS

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VANADIUM(II) CHLORIDE Usage And Synthesis

Chemical Properties

apple green; hexagonal plates; strong reducing agent; preparation: heating VCl3 in N2 atmospheric, followed by sublimation in N2 atmospheric; used to purify HCl by removing arsenic [HAW93]

Synthesis

Rapid disproportionation of VCl3 according to the above equation can be achieved at 800°C in a stream of high-purity N2. The VCl4 is carried away by the N2 stream (4 bubbles/sec), while the VCl2 remains in the reactor tube. The temperature should not exceed 850°C, to avoid loss of VCl2 by sublimation. The reaction is fairly fast; for example, the reaction of 20 g. of VCl3 takes 2 hours.

Solubility in organics

Insoluble in alcohol or ether.

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