| Identification | Back Directory | [Name]
vanadium dichloride oxide | [CAS]
10213-09-9 | [Synonyms]
Vanadyl dichloride
VANADYLOXYCHLORIDE
dichlorooxovanadium
dichlorooxo-Vanadium
VANADYLOXYDICHLORIDE
Vanadium oxydichloride
Vanadium, dichlorooxo-
Dichlorooxovanadium(IV)
Vanadium(IV) oxychloride
vanadium dichloride oxide
oxovanadium,dihydrochloride
Vanadium(IV) dichlorideoxide
Vanadium(IV) oxidedichloride
Vanadium(IV) dichloride oxide | [EINECS(EC#)]
233-517-7 | [Molecular Formula]
Cl2OV+ | [MDL Number]
MFCD00011458 | [MOL File]
10213-09-9.mol | [Molecular Weight]
137.847 |
| Chemical Properties | Back Directory | [density ]
2.88 | [solubility ]
reacts with H2O; soluble in ethanol | [form ]
green hygroscopic crystals | [color ]
green hygroscopic crystals, crystalline | [Water Solubility ]
slowly decomposed in water; soluble absolute alcohol, glacial acetic acid [MER06] | [EPA Substance Registry System]
Vanadium, dichlorooxo- (10213-09-9) |
| Hazard Information | Back Directory | [Chemical Properties]
Green, deliquescent crystal. Usual technical
product is a dark-green, syrupymass, 76–82%
pure, or a solution. Slowly decomposed by water;
soluble in water, alcohol, and acetic acid; may react
violently with potassium. | [Uses]
Has been used as mordant in printing fabrics. | [Hazard]
Strong irritant to tissue. | [Preparation]
A thoroughly ground mixture of 3.6 g. of dry V2O5 and 9.4 g. of VCl3 is placed at the closed end of a l-m.-longtube, and 0.9 ml. of VOCl3 is then added. The upper part of the tube must be free of traces of these substances. The tube, filled with air, is melt-sealed, and is covered along its entire length with a sheet-metal jacket; its lower third, in a slightly inclined position, is then heated to about 600℃ with a tubular electric furnace. The sheet-metal jacket provides a temperature gradient along which the product VOCl2 sublimes out of the hot reaction zone. This procedure requires at least 4-5 days. However, the yield can be increased by longer heating time. Green needlelike crystals of VOCl2 are deposited in the cold part of the tube. The tube is opened at a suitable spot; the product is suspended in petroleum ether, ethyl ether or CCl4 to dissolve some adhering VOCl3, and then suction-filtered on a coarse fritted-glass filter. The relatively coarse filter separates the VOCl2 crystals from traces of finely divided hydrolysis products. The VOCl2 is freed of adhering solvent and stored under anhydrous conditions. |
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